n.排水溝

Canals and rivers form the inland waterways of a country. 運(yùn)河和河流構(gòu)成一個(gè)國家的內(nèi)陸航道。

Uncharted waterways;the uncharted desert. 地圖上未標(biāo)記的水道;地圖上未標(biāo)記的沙漠

Help us restore our waterways for work &play! 幫助我們?yōu)楣ぷ髋c玩恢復(fù)我們的水路！

In waterways these can damage the gills of fish. 在水中還可以損害魚類的腮。

Backward inland waterways have been improved distinctively. 內(nèi)河航道落后面貌得到了明顯改善。