Fluoram
二氟化铵
🗣️ 情景例句
Much still remains to be done.
还有很多事要做。
She won't be in until 10:45, so the earliest would be 11:00.
她要到10:45才来，所以最早也得到11点才能看。
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。