Lenk
[医][=leucine-enkephalin]亮氨酸-脑啡肽
🗣️ 情景例句
Sorry to disturb you again.
抱歉， 又来打扰你。
Never swap (or swop) horses while crossing the stream.
骑渡中流莫换马。（指危难时不宜做大变动）
2-10-net-30.
2-10-net -30。