Definition: to begin to happen or to make something begin to happen Level: B1
警方认为火灾是纵火犯引起的。
Police believe the fire was ___started by arsonists.
市议会启动了一个新的回收计划。
The Council has ___started a new recycling programme.
他转动钥匙启动了汽车引擎。
He ___started the car engine with a turn of the key.
