necessary造句
For her, books were as
necessary to life as bread.
对她来说，书就像面包一样，是生活必需品。
Now there is a dawning realisation that drastic action is
necessary.
现在人们开始意识到必须采取断然的行动。
Fry remaining peppers, adding a little more dressing if
necessary.
用油炸一下剩下的辣椒，如果需要再加点调味汁。