Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
I'm looking for somebody fit for the work.
我在找适合这项工作的人。
A penny saved is a penny earned(or gained).
省钱就是赚钱。
They trooped behind the first dancer, copying its movements.
它们成群结队跟在第一只跳舞的蜜蜂后面，模仿着它的动作。