n.插孔,(压载水柜)放水孔,密封采空区的密封孔道;
例句:
Millions of pounds have gone down the plughole.
数百万英镑付诸东流。
The water went down the plughole with a loud gurgle.
水发着响亮的汩汩声流下了排水洞.
Germans worry that their economy is going down the plughole.
德国人担心他们的经济会滑入深渊。