to persist in; to persevere with; to keep up or maintain a state or habit

firm; determined; uncompromising in attitude or action

strong; firm; staunch; describes someone with a solid character or an unshakeable will who can withstand pressure or trials

firm; staunch; resolute; describing a person's stance, willpower, or belief that does not waver

to believe firmly or without any doubt

firm and substantial; having a strong and solid physical structure or foundation

To firmly adhere to or uphold a principle, promise, or standard; to keep one's word.

firm and stable without any hesitation or change; used to describe a person's position, will, or resolve as being resolute and unflinching

firm; solid; stable; physically strong and not easily broken or moved

a type of dry fruit with a hard, woody shell that does not open at maturity (e.g., walnut, chestnut)

hard and solid; firm

(idiom) to persevere unremittingly; to keep going until the end; persistent

strong and resilient in material or structure, such as wood or leather

To assault a strongly fortified position or defense; to attack a well-defended enemy target.

firm and upright; strong and straight

The core or most important members of a group who play a leading role; nucleus; hardcore

firm and persistent; possessing an unswerving determination or inflexible will

to claim or assert something positively; to maintain a statement firmly

A military battle or offensive launched against heavily fortified enemy positions or strongholds

(idiom) extremely solid and impossible to destroy; impregnable; invulnerable

the United States of America; America

firm and indomitable; used to describe a strong will that cannot be shaken

Sun Jian (155-191), a famous general at the end of the Han dynasty and father of the founders of the Eastern Wu kingdom during the Three Kingdoms period.

showing strong will and endurance under difficult conditions; tenacious; long-suffering

no stronghold cannot be overcome; to conquer every obstacle or carry everything before one

firmness; steadfastness; staunchness

Founding emperor of the Sui dynasty (reigned 581-604), known for reunifying China and establishing the imperial examination system; posthumously titled [[隋文帝|隋文帝|sui2 wen2 di4]]

faithful and unyielding; loyal and firm in one's principles or integrity; unswerving to the end

firm and indomitable; having unyielding fortitude or persistence in the face of difficulties

Fu Jian (338-385), emperor of Former Qin during the Sixteen Kingdoms period who unified much of northern China before being defeated at the Battle of Fei River; reigned 357-385.

Country in North America located between Canada and Mexico; its short name is [[美国|美國|mei3 guo2]].

(idiom) as firm as a giant boulder; absolutely secure and unyielding; used to describe feelings or foundations that are impossible to shake or destroy

Huang Tingjian (1045–1105), a famous Northern Song dynasty writer, poet, and calligrapher; one of the four masters of the Song dynasty and founder of the Jiangxi school of poetry.

faithful and unchanging; to remain steadfast and refuse to yield or surrender

solid or thick ice

staunch and inflexible; used to describe a person who is steadfast and refuses to give in to pressure or hardship

firmness; solidity; durability

to fortify defenses and clear the countryside of food and supplies; a defensive strategy used to leave nothing of value for an invading enemy

to become more firm, vigorous, or determined as one grows old; vigorous in old age

To refuse firmly and resolutely; to reject outright

to remain firm and ambitious even when faced with poverty or difficulties

to persist in something without change; to be unswerving; to hold fast to a commitment or belief

adamant and persevering; showing great fortitude and diligence in the face of hardship

firm; strong; sturdy; durable

(literary) to strengthen or fortify a wall or defense for protection against an enemy

to be loyal through thick and thin; unyielding integrity

Literally "sturdy ships and powerful cannons"; describes a military with advanced equipment and strong firepower.

to insist on; to continue upholding; to persevere or stick to something

the core people or elite members of a group; mainstay; hard core