Innerspring
a. 内装弹簧的
🗣️ 情景例句
Hmm. Anything else?
嗯， 还有其他事吗？
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
Train compartments soon get cramped and stuffy.
车厢很快就变得拥挤、闷热，