service line

• n. 发球界线

英英释义

Noun:

1. the back line bounding each end of a tennis or handball court; when serving the server must not step over this line

例句

用作名词 (n.)

1. The line of the two countries is too vague.
   这两个国家的界线太模糊了。

近反义词

【近义词】

• baseline 基线