A likely explanation for this involves the fact that intercontinental migrations require both a land bridge connecting the two continents and the suitable habitat both on and across that land bridge.
对此,有一种可能的解释是,洲际迁移既需要连接两个大陆的大陆桥,也需要大陆桥上和桥对面存在合适的栖息地。
And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.
四氯化钛和镁,反应生成氯化镁和钛,1937年W。J。克劳尔发明了这个方法。
This involves the cooperation of testers and developers working together to efficiently and effectively analyze and solve these problems, and to improve performance.
这涉及到测试人员和开发人员的合作,以便有效地和高效地分析和解决这些问题,并提高性能。
But this is different. It involves the war, the ownership of human beings and the future of the divided nation.
VOA: special.2010.05.10
There's also another transition that he's making, and this involves the subject of virginity: not a speechlessness, but his actual abstinence.
他还做了另一个转变,这涉及到童贞的话题:,不是哑口无言,而是他实际的节制。
And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.
四氯化钛和镁,反应生成氯化镁和钛,1937年W。J。克劳尔发明了这个方法。
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