This war will put a great strain on the economy. 这场战争将给经济带来沉重的负担。

a thigh strain 大腿拉伤

a strain of human flu virus 一种人类流感病菌

There's a strain of meanness that runs in their family. 他们一家人都有一种刻薄的倾向。

I strained to hear what they were saying. 我费了很大劲儿才听到他们在说什么。

Relations between the two nations have been strained since the war. 自那场战争以来，这两个国家之间的关系一直很紧张。

I've strained a muscle in my shoulder. 我拉伤了肩膀上的一块肌肉。

The elephants strained at their ropes. 这些大象使劲拉扯系在它们身上的绳子。