试题题干
Translate the following sentence into Chinese.
As the air was let out of the bellows, he felt his suit swell up because of the air pressure inside.
参考答案
试题解析
考点：let out排出；swell up膨胀；because of由于；air pressure气压。
句子结构：As引导时间状语从句，主句为he felt his suit swell up，because of the air pressure inside为原因状语。