Internal diameter
[机] 内直径
🧩 词语组成解析
internal
[ɪn'tɝnl]
adj. 国内的;内部的;体内的;内心的;
prep. （机构）内部的;
n. 内脏，内部器官;本质，本性;
intern=inter 在…之内 + al 属于...的 → a.内的；国内的
🗣️ 情景例句
A thief has just robbed me. Can you send the police?
一个盗贼抢劫了我，你能替我报警吗？
I'll have studied English for four years next March.
到明年三月，我就学了四年的英语了。[将来完成时，表示将完成…，会做完…]
For the first time in his life, he became the proud owner of a bed which had springs and a mattress.
他平生第一次自豪地拥有了一张既有弹簧又带床垫的床。