挖掘机刨了3个大坑，每个约50米长、1.5米深。
A digger had carved out three trenches, each about 50 metres long and 1.5 metres deep.
为了把桌面扩展到多个屏幕上，请确保根窗口的位深与在每个屏幕上都相同。
To spread your desktop across multiple screens, make sure the root window bit depths are the same on every screen.
棉铃象虫在美国难以为害，农业部会拿纤维的抗拉强度等玄深标准逐个检测每个棉包。
The country has pretty much defeated the boll weevil, and the Department of Agriculture individually tests every bale on obscure measures such as the tensile strength of the fibres.
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