運(yùn)河上捕魚的最佳地點(diǎn)是靠近水閘的地方。The best place to catch fish on a canal is close to a lock.過剩的水將會通過水閘排放到海里去.Excess water will drain through sluices into the sea.蓄在水閘內(nèi)的水具有自由能.The water stored behind a dam has free energy....

“水閘”的拼音為：shuǐ zhá...