Consequently, it is often necessary to close a series of basins by means of sluices and thus maintain a constant water level in the closed port section.

因此有必要使用泄水闸来封闭一些港区，以保持封闭港区中的水位。

youdao

More than 500 residents of the port city remained cut off from their homes by the standoff, and local businesses and three nearby schools remained closed.

由于双方仍处于对峙阶段，这个港口城市超过500名居民滞留在外，商店和附近的三所学校仍然关闭。

youdao

"The port is closed and will remain closed for several hours," said a spokeswoman of us Customs and Border Patrol.

美国海关和边境巡逻部门发言人表示：“口岸已经被关闭，并将持续数小时。”该口岸是世界上最繁忙的边境口岸。

youdao

Nineteen-year-old Cimeau Cassandra is one of several students from Port-au-Prince whose schools are now closed and who have come to Mirebalais to register for classes.

VOA: standard.2010.02.01

Schools remain closed in the parts of Port-au-Prince that were hardest hit by the earthquake.

VOA: standard.2010.02.01

The French port of Calais was closed on Saturday and that caused a huge backup of vehicles around the English port of Dover where ferry services were hit.

VOA: standard.2009.12.21

Authorities closed the port, one of Israel's key shipping center's.

NPR: Haifa Adjusts as Hezbollah Rockets Rain Down

The closed British Columbia port is known as the Douglas or Peace Arch crossing, and Canadian authorities are asking motorists to use another area crossing, said Faith St.

CNN: STORY HIGHLIGHTS

The Port Authority closed its four city-area airports Monday night because of flooding.

WSJ: Salt Water Puts City's Subway System 'in Jeopardy'