Letian.莱希娅letv.让；允许；(用于祈使句表建议、请求、命令)让；假设；出租n.出租；阻碍；(网球等)触网重发Let us stop peddling.让我们停止做无聊事。Let me see the watch.让我看看手表。Let the sun shine in.让阳光照耀。let sb. foot the bill让某人付账Let her sing with us.让她和我们一起唱歌。let down heat exchanger下泄热交换器Let's head back home.减缓膜污染let's... Dutch.使在力量上或效力上减少。let the purchase beware[法] 购买者注意!购买者留意！let slip an opportunity错过机会