1. The ointment stops the hair from falling out.
   这药膏可以防止脱发。
2. They fell out because of the little conflict.
   他们因小冲突而争吵。
3. The area fell out of habitation for lack of water.
   那地方因缺水已无人居住。
4. The operation fell out splendidly.
   手术做得很成功。
5. These slangy words have long fallen out of English.
   这些俚语在英语中早就不用了。

　1个名词解释