Helixseal
螺旋密封
🗣️ 情景例句
Good night, Mrs. Stewart.
晚安，Stewart太太。
I remember the girl whose father owns a stationery store.
我记得那个女孩的父亲有一家礼品店。
This is a good photograph.Who are these people?
这是一张很好的照片。这些人是谁。