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- For people with MVP with regurgitation and/or thickened valve flaps, antibiotics are recommended before many dental and medical procedures to prevent infective endocarditis. 对于出现二尖瓣反流或瓣片增厚的患者，在接受牙齿护理和其他医疗手术之前，医生一般会对其使用一些抗生素以预防感染性的心内膜炎。
- I flap the flies away but soon they fly back. 我把苍蝇赶走，但一会儿又飞回来了。
- A triangular fold or flap of a heart valve. 尖瓣心脏瓣膜的褶皱或瓣片之一
- A flap from the tail of the whale upset the boat. 鲸尾轻轻一拍便把小船打翻了。
- Have you turned off the water valve? 你关掉水阀了吗？
- I got into a real flap when I lost my keys. 我丢了钥匙，心里发慌。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- A decorative flap or loose fold on a garment or headdress. 垂饰外套或头巾上的装饰性的下垂物或松散的褶层
- He doused the candle with a flap of his hand. 他用手煽熄烛火。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- A flap in Congress over the defense budget. 由于国防预算引起的国会慌乱
- The exhaust valve on my car have burn out three times. 我车子上的排气阀已烧坏三次。
- I am really in a flap about the interview. 这面试真叫我慌极了。
- I'm really in a flap about the explosion. 我很担心会爆炸。
- The exhaust valve on my car has burnt out three times. 我车子上的排气阀已烧坏三次。
- I get into a real flap when I lose my key. 我丢了钥匙，心里发慌。
- You often flap blackbeetle with newspaper. 用报纸打蟑螂是家常便饭。
- Composed of a single valve or piece. Used of a shell. 单瓣的由单个瓣膜或部分组成的。用于壳
