Velocity-variation amplifier
[电] 变速放大器
🧩 词语组成解析
🗣️ 情景例句
Or at least give him some advice.
再不然至少可以给他一些忠告。
Observation is the best teacher.
观察为良师。
In another chest, which contained the belongings of a ship's officer, there was an unfinished letter which had been written on March 14th, 1943.
另一只海底沉箱中装的是船上一位军官的财物，其中有一封写于1943年3月14日的信，但没有写完。