Jetometer
润滑油腐蚀性测定器
🗣️ 情景例句
OK. Thank you.
好 ，谢谢。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
There was danger that the wave would rebound off the other side of the bank and send the dish plunging into the water again.
但是当波浪从河对岸折回来时，就有再次把盘子拖进水里的危险。