It's none of my business, but I think you ought to work harder.
这不关我的事,但我想你应该更加努力地工作。
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗?
Professor Karl von Frisch, an Austrian scientist, spent many years of his life researching the amazing ways honey bees communicate in their dark hives.