1. 形容詞
   預先警戒的, 預防的
   留心的, 小心的
   

   同義字詞
   preventative,preventive,prophylactic
   

例句

1. Act on the basis of a precautionary programme.
2. A precautionary approach has many feedback loops.
3. RF Safe's Founder offers other precautionary tips.
4. The precautionary principle does have some utility.
5. So, whatever precautionary measure they have to take.
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