狗喜欢在泥水洼里扑腾，河马则喜欢在其中打滚撒欢儿。Dogs love splashing in mud and hippos wallow in it.他一进来，狗就开始摇头摆尾。As soon as he got inside, the dog shook himself.他们更加关心那些狗的安危，而非自己如何干净利落地脱身。They were more concerned about the dogs' welfare t...
Is that why they're constructing so many underpasses, overpasses and highways?那就是他们建这么多天桥 、 地下通道和公路的原因 吗 ?We won't run into any problem of non - commutativity in constructing these operators.在构成这些算符时,我们不会陷入任何 非...