watershed

英 [ˈwɔːtəʃed]

美 [ˈwɔːtərʃed]

n. 转折点，分界线，分水岭(标志着重大变化的事件或时期); 分水线; 分水岭; 分水界; (英国)儿童不宜节目可在电视上播放的起始时间

复数：watersheds　

Collins.1 / BNC.14176 / COCA.7689

牛津词典

noun

转折点，分界线，分水岭（标志着重大变化的事件或时期）
an event or a period of time that marks an important change
1. The middle decades of the 19th century marked a watershed in Russia's history.
  19世纪中叶标志着俄国历史的转折点。
分水线；分水岭；分水界
a line of high land where streams on one side flow into one river, and streams on the other side flow into a different river
（英国）儿童不宜节目可在电视上播放的起始时间
(in Britain) the time before which programmes that are not considered suitable for children may not be shown on television
1. the 9 o'clock watershed
  可开播儿童不宜电视节目的晚上9点钟时限

N-COUNT 转折点;分水岭
If something such as an event is awatershed inthe history or development of something, it is very important because it represents the beginning of a new stage in it.
1. The election of Mary Robinson in 1990 was a watershed in Irish politics...
  1990年玛丽·鲁宾逊的当选是爱尔兰政治上的一个转折点。
2. Tonight could prove to be a watershed for the international career of Barnes.
  今晚将可能成为巴恩斯国际职业生涯的转折点。
N-COUNT (成人电视节目播出前的)分水岭时间
The watershedis a time before which television broadcasters have agreed not to show programmes unsuitable for children, for example programmes that contain scenes of sex or violence.
1. Bad language before the watershed is widely resented...
  在成人节目时间之前出现的脏话深为众人憎恶。
2. The advert should only be shown after the 9pm watershed.
  这则广告只能在晚上9点成人节目开始后才能播出。
分水线；分水岭
Awatershedis an area of high ground which divides two or more river systems, so that all streams on one side flow into one river and those on the other side flow into a different river.

noun

an event marking a unique or important historical change of course or one on which important developments depend
1. the agreement was a watershed in the history of both nations
Synonym:landmarkturning point
the entire geographical area drained by a river and its tributaries
1. flood control in the Missouri basin
Synonym:river basinbasindrainage basincatchment areacatchment basindrainage area
a ridge of land that separates two adjacent river systems
Synonym:water partingdivide