Transonics
跨音速空气动力学
🗣️ 情景例句
Ooh, speaking of keeping busy-I have an early start tomorrow,and the baby-sitter has to get home.
哦， 说到忙于工作，我明天还得早起，而且临时保姆也该回家了。
A strange thing happened to me this morning
一件奇怪的事情今早发生了在我身上。
Babies of two months old do not appear to be reluctant to enter the water.
两个月的婴儿并未显得不愿意入水。