Esters
[医]酯类
🗣️ 情景例句
In this company you must toe the line if your want to keep your job.
在这个公司里，你必须循规蹈矩才能保住饭碗。
Whom will you speak to?
你将和谁说话？
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。