下行电梯的英文：
down escalator

down是什么意思：
prep. 在…下，沿着
v. 下降，打倒
n. 潦倒；羽绒；丘陵

Down with hegemonism!
打倒霸权主义！

The sun is down.
太阳下山了。

Close down autos and you close down steel and rubber.
关掉了汽车工业你也就关掉了钢铁工业和橡胶工业。

nail down; nail in;hold by
钉住;使人遵守诺言

break down resistance
粉碎反抗，制服反抗

escalator是什么意思：
n. 电动扶梯

Try to prevent an escalation of the war.
竭力防止战争升级。

The cost of living is escalating.
生活费用越来越高。

The building was equiped with escalator.
那大楼按装了自动梯。

escalation has conceptual affinities with bargaining theory
逐步升级同交易理论在概念上具有相似性。

You can ride the escalator up but have to descend on foot.
你可以搭电梯上去，但要自己走下来。