For each of them there are four choices marked A, B, C and D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

每题都有对应标记的A、B、C和D四个选项，请选择最佳选项并在答题卡2的相应字母中间划横线。

youdao

The playing area was marked off with a white line.

运动场地用白线划了出来。

《牛津词典》

For one thing, missing data is not explicitly indicated, but is simply marked by an absent line and time stamp.

一方面，没有显式地标明丢失的数据，而只是通过不存在的行和时间戳进行了简单的标记。

youdao

Each marked line was filled in by hand in trademark Bugatti blue and a five layer coat of clear lacquer.

FORBES: Bugatti L'Or Blanc Grand Sport at Miami Art Basel

Damara had marked the line of control drawn by regional forces in January, following an accord signed in Libreville, the capital of neighboring Gabon.

NPR: C. African Republic Hospitals Looted After Coup

It is sometimes marked by a line of debris, e.g. seagrass, pieces of wood.

UNESCO: L O S S A R Y