什么时候用in什么时候用are_什么时候用in什么时候用are

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Covered by Medical Insurance! Are Brain-Computer Interfaces ...In the 1970s,As personal computers were only beginning to appear,The concept of brain-computer interfaces (BCI) was already on the horizon. Yet by 2025,While personal computers are now in nearly every home,BCI can still feel like science fiction. But is that really the case?In fact, BCI tec...

在树上用in the tree还是on the tree?一句话总结:在树上是用in the tree还是on the tree? 在树上到底是on the tree还是in the tree?关键是树上是什么东西? 只要是从树上长出来的,就是On ,比如说叶子、果实、花朵等. 举例说明: The apples are on the tree. 只要不是从树上长出来的,就是in ,比如说鸟儿、猫、风筝等. 举例说明: Th...

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＋＾＋ in hock toin hock to,意思是欠…的债(或人情);为…所牵制。英文释义为:If you are in hock to someone, you feel you have to do things for them because they have given you money or support. 关于这一习语的来源,英国人和美国人各有不同解释。英国学者将其追溯到16世纪以前的古老节日Hocktide,常...