Oscillations
n. 振动；振幅（oscillation的复数形式）
🗣️ 情景例句
Is it finished yet?
行了吗？
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
but Captain Fawcett did not take him because the trip was too dangerous.
弗西特机长之所以不送他去，是因为那段飞行太危险了。