Aerohydrodynamics
空气流体动力学
🗣️ 情景例句
How much notice of cancellation is necessary to get my deposit back?
想把定金拿回来，要提前多长时间通知你才行？
Children are the parents's riches.
子女是父母之财富。
The question became one of whether Man could control the disease he had invented.
现在的问题是，人类能否控制住这种人为的疾病。