normal lamp

例句：

1. 1. The room is normal in size and shape.
   房间的大小和形状都是正常的。
2. 2. She wears a normal dress for the occasion.
   她穿着一件普通的连衣裙参加这个场合。
3. 3. His behavior was normal for his age.
   他的行为对于他的年龄来说是正常的。