I'm sick and tired of having to take care of your brother just because he refuses to go out and find a job.
只是因为你弟弟不肯出去找工作就得我来照顾他,这真让我烦透了。
Now that they could ride horses, it became easier to hunt the bison, a type of cattle which used to exist in huge numbers on the plains of America.
当他们从一个营地搬到另一个营地去的时候,他们就可以利用这些野马来运载货物。既然土著人会骑马了,猎取野牛也就容易了。这种野牛以前是成群结队地生活在美洲平原上的。