Catching a fish is a lot more complicated than just throwing a worm in the water.
钓鱼可不是把鱼饵抛进水里那么简单。
Please come in and have a orange.
请进来吃一个桔子。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.