You can toggle a breakpoint by double-clicking the gray margin beside the line of code.

通过双击代码行旁边的灰色空白边，就可以设置断点。

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The code in this gray area is written with the presumption that it would be cleaned up later, but then it is never done.

人们在开发处于灰色地带的代码时，打算稍后做清理，却从未完成。

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If dividing the context item by 2 leaves a remainder of 1, the stylesheet generates the CSS code background: gray; color: white;.

如果上下文项除2余1，样式表就生成CSS代码background： gray； color： white；。

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The design featured a wooden frame on top of a concrete-slab foundation, with an exterior covered in gray asbestos shingles. (Steel was in short supply.) The structure violated the Cambridge fire code, but it was granted an exemption because of its temporary status.

NEWYORKER: Groupthink