Tear sac
[医] 泪囊
🧩 词语组成解析
tear
[tɛr]
v. 撕裂;拉掉;挣开;拉伤;
n. 破洞;裂口;
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
It was an extremely difficult and dangerous task.
这是一项极度困难的危险的工作。
I've hurt my finger.
我割伤手指头了。
Ever since, people have had difficulty in deciding whether the craft should be ranged among ships,
自那以后，人们很难决定是否应该将这种运载工具列为轮船、