I can't drive a car, but I have a motorbike license.
我不会开汽车,但我有摩托车的驾驶执照。
You can take a horse to the water but you cannot make him drink.
马到河边不喝水,逼马低头亦枉然。(不要逼人做他不愿做的事)
For example, you might pick up a travel book and read a few pages before going to sleep. It is enough to dip into it and read bits here and there. In a word, this is tasting.