Glass hives offer a close-up view of the bees at work, with the queen bee in each hive marked by a white dot.
玻璃蜂房可以近距离观察工作中的蜜蜂,每个蜂房的蜂王都被打上白点标记。
The playing area was marked off with a white line.
运动场地用白线划了出来。
Several red and white barriers marked the road at intervals of about a mile.
每隔1英里左右就有一些红白相间的路障来标示道路。
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