绷劲

tā yī běng jìn jiù bǎ shí tou jǔ guò le tóu dǐng

他一绷劲，就把石头举过了头顶。

Straining hard, he lifted the boulder above his head.

tā yī běng jìn bǎ zhòng wù jǔ le qǐ lái

他一绷劲，把重物举了起来。

He tightened his muscles and lifted the heavy weight.

tā men yī běng jìn jiù bǎ kuàng tái qǐ lai le

他们一绷劲就把框抬起来了。

They tensed their muscles and lifted the cabinet.

běng jìn le

绷劲了

strain one's muscles