beat意思是：击败(在比赛或竞争中)，打败(某人)；控制；跳动;击鼓声;振翅声;跳动声;有规律的敲击(声)。beat第三人称单数为beats，现在分词为beating，过去分...
become的过去式：became；过去分词： become v.开始变得;变成;适合(某人);与…相称;使(人)显得漂亮;使好看 例句： The environment has become a very hot is...
