Bottle neck
[化] 瓶颈
🧩 词语组成解析
neck
[nɛk]
n. 颈，脖子;衣领;海峡;[地]岩颈;
vi. 搂着脖子亲吻，相拥互吻;变狭窄;
vt. 使变细;与…搂著脖子亲吻;割颈杀死（家禽等）;
🗣️ 情景例句
The rules can be applied to any case.
这规则可适用于任何情况。
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
Everything's very quiet.I'm sure there's no one at home.
毫无动静，肯定家里没有人。