2 sentences for 支撑 (zhī​chēng — sustain)

1. 这块木板太旧了，已经无法支撑重量了。

   zhè kuài mù pàn tài jiù le, yǐ​jīng wú​fǎ zhī​chēng zhòng​liàng le.

   This wooden board is too old to support any weight anymore.

   Source: Dong Chinese Dictionary

2. 他辛苦工作，独自支撑着整个家庭的开支。

   tā xīn​kǔ gōng​zuò, dú​zì zhī​chēng zhe zhěng​gè jiā​tíng de kāi​zhī.

   He works hard to single-handedly support the expenses of the entire family.

   Source: Dong Chinese Dictionary