英国于1971年开始使用十进制的1便士和2便士硬币。In 1971, the 1p and 2p decimal coins were introduced in Britain.他懂得十进制的用法.He knows the decimal rules.古埃及数学以十进制为基础。The mathematics of ancient Egypt were based on a decimal system....
Dogs love splashing in mud and hippos wallow in it.狗喜欢在泥水洼里扑腾，河马则喜欢在其中打滚撒欢儿。They were more concerned about the dogs' welfare than a clean getaway.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。Across the busy plaza, vendors sell hot do...