Your brother left his bag of film on the ferryboat.
你哥哥将他的旅行袋遗放在渡船上了。
When the fire started, I was writing letters.
当火起来的时候,我在写信。
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.