I should say

汉语翻译

例句：

1. It's a long shot, but I should say she's about forty.
   这不好猜，但我猜她大约是四十岁左右。
2. I should say a few words (by way) of explanation.
   我应当说几句解释的话。
3. That, I should say, is true.
   那大概是事实吧。
4. I should say so.
   我想是这样的。