Eocrinoidea
始海百合纲
🗣️ 情景例句
It doesn't mean you have to be a doctor.
这并不意味着你一定要当医生。
The first step is as good as half over.
第一步的成功等于事情的一半已完成。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。