merely; only; simply; just being something or someone; used to limit the scope of a situation to nothing more than what is mentioned

but; however; used to connect sentences or clauses to show a slight change in direction or a limitation, similar to 不过 bù​guò

simply because; just because; used to introduce the sole reason for a situation, often occurring as 只是因为 zhǐ​shì​yīn​wèi

simply; just; used to emphasize that a situation remains unchanged regardless of the conditions, often before a negative phrase or specific action