Sure. We've been in business about five years now.
当然。我们创业至今有五年的历史。
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡,也不会变白。
Marine Studio biologists have pointed out that, however intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving.