as a rule

汉语翻译

例句：

1. As a rule he writes English very well, but occasionally unidiomatic expressions creep in.
   他通常英语写得很好，可是偶尔会夹杂一些不合习惯的表达方式。
2. As a rule of thumb, you should cook a chicken for 20 minutes for each pound that it weighs.
   凭经验估计，每磅鸡肉应烹调20分钟。
3. As a rule, I'm home by six.
   我通常六点在／到家。
4. As a rule, it's the gentleman that holds out his hand to invite a lady to dance.
   通常，是男士伸出手来邀请女士跳舞。