orifice aerator

例句：

1. 1.The scientist discovered a new orifice in the molecule.
   科学家在分子中发现了一个新的开口。
2. 2. The engineer made an orifice in the wall to allow air to flow through.
   工程师在墙上开了一个口子，让空气能够流过。
3. 3.The doctor inserted a needle into the patient's arm to create an orifice for injection.
   医生把针头插入病人的手臂里，创建了一个注射口。