escalate

逐步增强；逐步升高英释vvto become higher or increase, or to make something do this

1 The costs were escalating alarmingly..成本在以惊人的速度增长。

2 policies that escalate their own costs.促使其自身成本增加的政策

3 escalating crime.愈演愈烈的犯罪活动