Alphatron
α粒子电离压强计, α射线管
🗣️ 情景例句
Please give him the message.
请转告他。
He wants to change his appointment from Monday to Wednesday.
他想要把他的约会从星期一改到星期三。
But a watch could never repair itself----it does not consist of living parts,
但是，手表决不会自行修理，它不是由有生命的部件组成，