step up
走上,走進;提高,增加
step up
v 1: increase in extent or intensity; "The Allies escalated the
bombing" [syn: escalate, intensify] [ant: de-escalate]
2: speed up; "let's rev up production" [syn: rev up]
3: make oneself visible; take action; "Young people should step
to the fore and help their peers" [syn: come to the fore,
step forward, come forward, step to the fore, come
out]