Underreamer
扩孔器
🗣️ 情景例句
Do you have any openings for a typist?
你这里缺打字员吗？
Janet winked at her boy friend.
珍妮向男朋友眨眨眼。
The box is heavy. Can you carry it?
这个箱子很重，你能搬动吗？