Pacemaker enzyme
[化] 定步酶
🧩 词语组成解析
pacemaker
[['peisˌmeikə]]
n. 带步人, 标兵, 起搏器\\n[医] 起搏点, 起搏器
🗣️ 情景例句
often took us somewhere in the city on the weekends.
经常在周末带我们去城市的一些地方。
Don't be nervous.
不要紧张。
I've just arrived myself so forgive me if I don't seem to know what's going on.
我自己也刚到家。所以，如果我不了解情况的话，那么请你原谅。