• 説明
• 文述

In cases such as when a ～

• 政治・社会
• 製造業
• ビジネス

in the ratio of 1 to 2

make it a rule to ～

I make it a rule never to mix business with pleasure.

Make it a rule always to check with the scorekeeper before going on to the area.

Early April in the Hebrides can be wild, but we always make it a rule that, if we have decided to go, then we go, regardless of weather conditions.

• 説明

things to bear in mind

• 口述
• 表現

go to all the trouble to ～(do stg)

be kind enough to ～(do stg)
親切にも～する