Acetacetate
乙酰乙酸盐(或酯)
🗣️ 情景例句
It's OK, lady. Take your time.
没关系， 太太。慢慢来。
It takes a bit of nerve to cross these chain bridges.
过这种铁锁桥需要有点胆量才行。
Why? What happened?
为什么？发生什么事了？