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
How long do you intend to stay?
你打算在这儿呆多久？
Catch the bear before you sell his skin.
大事未成时，莫开庆功宴。
and he estimated that there were more than 2,250,000 in one acre;
他估计每英亩草坪里有225万多只蜘蛛。