Enveloping worm
[化] 环面蜗杆; 球面蜗杆
🧩 词语组成解析
v. 包围, 笼罩, 包住( envelop的现在分词 )
worm
[wɝm]
n. 虫，蠕虫;（昆虫的）幼虫;寄生虫;懦夫;
vt.& vi. 蠕动，曲折行进;给（动物）驱肠虫;使缓慢前进;
🗣️ 情景例句
Just because the other kids have motor scooters is no reason for you to stop riding your bike to school.
只是因为其他的孩子都有电单车上学，不足以成为你不骑车上学的理由。
How did you tell him?
你是如何告诉他的？
He did very badly on the exam----worse than expected almost the worst in the class.
他考的不好，比期望的还糟。几乎是全班最差的。