Part of Hong Kong on the south coast of mainland China, lying to the north of the Kowloon peninsula and including the islands of Lantau, Tsing Yi, and Lamma.
新界（香港的一部分，位于中国大陆南海岸，九龙半岛的北面，包括大屿（（山岛））、青衣岛和南丫岛）
Definition of New Territories in US English:
New Territories
proper noun
The part of Hong Kong on the southern coast of mainland China that lies north of the Kowloon peninsula and includes the islands of Lantau, Tsing Yi, and Lamma.