Valvetrain
气门
🗣️ 情景例句
My visa is multi-entry; it allows me to exit the country and then re-enter, as ofter as I like.
我的签证是往返签证，我可以随便进出这个国家。
What's your nationality?I'm a native Australian.
我是土生土长的澳大利亚人，你的国籍是什么？
I realized sadly that I had been completely defeated by their ingenuity.
我懊丧地感到败在了足智多谋的蚂蚁的手下。