Ectosarcous
a. [生]原虫外膜
🗣️ 情景例句
No, he doesn't, Robbie.
没有， 他没有， Robbie。
There's no sense in going by boat when the plane is just as cheap and much quicker.
既然乘飞机和坐船一样便宜而且还快得多，那么就没有理由去坐船。
Where's Mr. Williams this evening?
威廉斯先生今晚去哪儿了？