low water mark
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌlow ˈwater ˌmark noun [countable] TTWTMa mark showing the lowest level reached by a river or other area of water 低水位线,低潮线 → high water mark
Examples from the Corpus
low water mark• Below low water mark, predation by lobsters may be significant.ˌlow ˈwater ˌmark nounChineseSyllable
the level mark a reached by lowest Corpus showing a river
low water mark
ˌlow ˈwater ˌmark
noun [countable]
a mark showing the lowest level reached by a river or other area of water ⇨ high water mark
ˌlow ˈwater ˌmark
noun [countable]a mark showing the lowest level reached by a river or other area of water ⇨ high water mark