以下是一些表示友情的英文短句：
1. Friendship is like a plant that grows only with love.
2. A true friend is one who knows you intimately and still loves you.
3. A friend is someone who reaches out a hand in hard times.
4. Friendship is like money - easy to earn but hard to keep.
5. A friend is someone who makes you feel good about yourself when you are feeling down.
6. True friendship is a wonderful gift that we should cherish and nurture.
7. The best friends are those who know the worst and still love you at your worst.
8. The greatest thing you will ever learn in life is to have true friends.
9. The key to a true friendship is openness and understanding, not secrets or lies.
10. True friendship is not about how much you have in common, but about how much you care for each other.
希望這些句子能幫助你表達友情。