normal acceleration of gravity

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.He wears a normal shirt every day.
   他每天穿一件普通的衬衫。
3. 3. The normalcy of life has been disrupted bythe pandemic.
   生活的日常秩序因疫情而被打乱。