The surface may not have been wet for all of that period, notes Dr Grotzinger, but groundwater could have persisted even when the surface was temporarily dry.
在那一时期，火星地表或许不会一直都有水存在，格罗青格博士指出，但会存在地下水，即便地表暂时干涸。
I didn't do all that work just for the fun of it.
我做这一切并不仅仅是为了好玩。
This is particularly true of the horse pastoralism that emerged in the Inner Eurasian steppes, for this was the most mobile of all major forms of pastoralism.
在欧亚大陆内部大草原上出现的马的游牧主义尤其如此，因为它是所有主要游牧形式中最具流动性的。
For the following question, consider each of the choices separately and select all that apply.
对于以下问题，请分别考虑每个选项并选择所有适用的选项。
One of its purposes is to register for all notifications which occur on that cell, node, or server.
其目的之一就是注册该单元、节点或服务器上发生的所有通知。
The chief source of all this passion is that thought for what is absent and future, which, with man, exercises such a powerful influence upon all he does.
这种激情的主要来源是对所缺少的和未来的思考，这种思考和人一起，对他所做的一切产生了如此强有力的影响。
Look at the ads for Chamber of Secrets, and you'll see that the filmmakers are doing all they can to juice up the formula.
看看《秘室》的广告，你就会发现电影制作方在想尽一切办法使老套的手法增色。
The irony is that for all the overexcited debate, the net effect of immigration is minimal.
讽刺的是，在所有这些过于激烈的争论背后，移民的净效应是微乎其微的。
From his first shows, Loutherbourg showed a knack for imagination and stage design, all in the interest of creating illusions that allowed the audience to suspend disbelief completely.
从他起初的演出开始，卢森堡就展现了自己在想象力和舞台设计方面的本领，这些都是为了创造幻觉以让观众完全不去怀疑。
This will ensure that all individuals are of the same species, and so increase their value for detailed studies.
这将确保所有的个体都属于同一物种，从而增加其详细研究的价值。
A government efficiency expert has observed that almost all provisional arrests meet the standards for adequacy of evidence that the watch commanders enforce.
一名政府效率专家指出，几乎所有的临时逮捕都符合监督指挥官执行的证据充足的标准。
A government efficiency expert has found that almost all provisional arrests meet standards for adequacy of evidence that watch commanders enforce.
一位政府效率专家发现，几乎所有的临时逮捕都符合监督指挥官执行的证据充足的标准。
It makes sense that smoking should be banned in all public places for the sake of health.
出于健康考虑，应在所有公共场所禁止吸烟。
It makes sense that smoking should be banned in all public places for the sake of health.
出于健康考虑，应在所有公共场所禁止吸烟。
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