If not NULL, increment the line counter.

如果不是NULL，则增加行计数器。

youdao

I think I must have left it by your air-line counter at the airport.

我想我肯定把它忘在机场你们航空公司的柜台边上了。

youdao

The logic used for form-feed-delimited pages is roughly the same, but slightly simpler, as there is no need for a line counter: Read char by char using the getc library function.

用于换页定界的页的逻辑大体上相同，只是稍稍简单一些，因为不需要行计数器：使用getc库函数逐个读取字符。

youdao

For one thing those on the front line in counter-terrorism warn that it risks cutting off vital local intelligence and serving as a recruiting sergeant for terrorists.

BBC: NEWS | UK | UK Politics | David Davis speech in full

The usually reliable Carter lost possession near the Wallabies try-line and on the counter attack, full-back Beale sprinted two-thirds of the field, running at an angle to stretch the New Zealand defence and touch down.

BBC: New Zealand 20-10 Australia

There, the vibrations of salsa music and dancing feet shook the walls as we hopped in line to order at the counter.

BBC: Puerto Rico��s Pork Highway