There was not a question but only a small black "X" in the middle of the paper.

试卷上没有问题，只是在中间部分有一个黑色的小 “X”。

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That single overall measure of "X percent coverage" is only one small part of the data PureCoverage collects.

“X 百分覆盖率”的单个总体性测量，只是 PureCoverage 收集数据的一小部分。

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X-rays enter the box through a small hole that in turn focuses them, like an old-fashioned pinhole camera.

射线通过一个小孔进入盒子，从而集中成一束。就像以前的针孔照相机。

youdao

The big B-52 carried the small X-15 under its wing.

VOA: special.2010.07.07

Global X Mexico Small-Cap ETF (NYSE: MEXS): Obviously, Mexico benefits when the greenback is strong because it means Mexican exports command higher prices here in the U.S. That much is true and it warrants a look at the newly minted Global X Mexico Small-Cap ETF.

FORBES: Five Other Strong Dollar ETFs

An example is virt-x, a small electronic exchange for European blue-chip shares which offers clearing and settlement alternatives: nearly all the liquidity has migrated to just one of them.

ECONOMIST: Post-trade concerns could hamper a pan-European solution

The vessel could also be a British two-man mini submarine - known as an X craft, a small boat or even a private yacht - one is known to have sunk in the area many years ago.

BBC: Experts to examine River Foyle, Derry, wreck