All scaffold should be marked by blue marker before block final inspection, and the marker should be round and easily found.

大厦最终检查之前，所有的脚手架应该用蓝色记号标出，记号应呈圆形且易于发现。

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All animals have it. It seems to vary enough, but not too much, to act as a reliable marker.

所有动物都有这个基因；这种基因有它的变体，但变体不多，因此可以作为可靠的标记。

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What marker of innocence are we to use after all?

我们究竟该以什么来作为无辜者的标志呢？

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All those below 17th were outside the stipulated 107% qualifying marker but a decision was taken to allow all non-qualifiers to race on Sunday.

BBC: Eugene Laverty's best finish this season is a 14th in Jerez

All, however, have underperformed Marker over the past three years (see table, below).

FORBES: Timing Is Everything

For the States and Tribes receiving grants today, the STEP Program is an important marker in collaboration and shared responsibility to promote educational excellence for all American Indian and Alaska Native students.

WHITEHOUSE: Improving Education for American Indians and Alaska Natives | The White House