Definition: something that you do to prevent bad things happening in the future Level: C1
晚上独自开车可能很危险，所以总是要采取预防措施。
Driving alone at night can be dangerous, so always take ___precautions.
他们叫了医生作为预防措施。
They called the doctor as a ___precaution.
他采取了锁门的预防措施。
He took the ___precaution of locking the door.
