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
Genes are the very building blocks of life.
基因是生命最基本的构建者。
No man knows when he shall die, although he knows he must die.
纵然知其难免一死，人却难料何时身亡。
What colour are you going to paint it?
你打算把它漆成什么颜色？