柯林斯詞典sump /s?mp/ (sumps) 1. N-COUNT A sump is a low-lying open area where waste water gathers. 水池2. N-COUNT A sump is a deep cave which is often filled with water. 集水坑3. N-COUNT The sump is the place under an engine which holds the engine oil. (發(fā)動機(jī)下面的)集油槽[英國英語] 返回 sump劍橋詞典a hole or container , especially in the lower part of an engine , into which a liquid that is not needed can flow 污水坑，集液池；（尤指發(fā)動機(jī)下部的）集油槽，油底殼 返回 sump