Frenock
四氟丙酸钠
🗣️ 情景例句
I've been invited to give a talk at the conference.
我已受邀在大会上发言。
You cannot sell the cow and sup the milk.
你不可能出售乳牛，同时又要喝牛奶。
Then in 1989, twenty-six years after the crash, the plane was accidentally rediscovered in an aerial survey of the island.
于是，到了1989年，飞机失事26年后，在对小岛的一次航空勘查中那架飞机被意外地发现了。