Transonics
跨音速空气动力学
🗣️ 情景例句
I'd better unpack.
我还是先把行李打开吧。
I have a complaint.
我要投诉。
However, as the evidence began to accumulate, experts from the Zoo felt obliged to investigate,
可是，随着证据越来越多，动物园的专家们感到有必要进行一番调查，