Welcome to the Voice of America's News Words.

欢迎收看美国之音：新闻词汇。

The United States is seeking shelter for young migrants who traveled without adult care to the U.S. southern border.

美国正在为那些在没有成年人照顾的情况下前往美国南部边境的年轻移民寻求庇护。

Surge

（数量的）急剧上升，激增

For months, border agents have faced a surge of migrants seeking asylum.

几个月来，边境人员一直面临着寻求庇护的移民潮。

Families and single adults who are caught crossing illegally are expelled, but unaccompanied children are held in crowded shelters.

被发现非法越境的家庭和单身成年人会被驱逐出境，而无人陪伴的儿童则被关押在拥挤的避难所。

A surge is a sudden, unusually big increase in the number, level or size of something.

“surge”指的是某物在数量、水平或大小上突然的、异常大的增长。

A storm surge, for example, is a rise in sea level from a powerful storm.

例如，“storm surge(风暴潮)”指的是强风暴引起的海平面上升。