normal ternary

例句：

1. 1. The temperature is normal for thistime of year.
   这个季节的气温是正常的。
2. 2.She wears a normal dress for theoccasion.
   她穿着一件普通的连衣裙参加那个场合。
3. 3. His behavior was unusual, but notabnormal.
   他的行为不同寻常，但并非异常。