Astronauts use knife, fork, and spoon.

宇航员使用刀、叉和匙。

Do I have to use knife to make a fruit salad?

做水果沙拉可是得用刀呀！

Ms. Mary Pandora Cheung was teaching a participant to use knife a correct way.

张玛莉小姐正在教导一位参加者如何正确使用餐刀.