四级firefighters will remain on the scene until later this morning to ensure that the fire doesn't start up again.
消防队员将留在现场直到今天上午晚些时候,以确保火灾不会再次发生。
2018年12月四级真题(第一套)听力 Section A
六级Flight attendants, firefighters, and police officers have to be over a certain height, and be physically fit.
空乘人员、消防队员和警察必须超过一定高度,身体健康。
2017年12月六级真题(第一套)听力 Section C
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