Backpressure operation
[化] 背压操作
🧩 词语组成解析
[化] 反压; 反压力
🗣️ 情景例句
About Mom and Dad.
爸爸和妈妈。
I'll play it by ear.
我将随兴而定。
Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight.
伯德这时知道他能够顺利飞抵300英里以外的南极了，因为前面再没有山了。