这位不是别人，正是我的老朋友约翰。
This is no other than my old friend, John.

他回过身来，帮助那位扭了脚的朋友。
He came back to help his friend who had sprained an ankle.

珍和玛丽是好朋友，前者是老师，后者是护士。
Jane and Mary are good friends; the former is a teacher, the latter is a nurse.

一谈到交朋友，你再怎么小心也不为过。
When it comes to making friends, you cannot be too careful.

我刚走出饭店就遇见了我的朋友。
Hardly had I gone out of the hotel when I met my friend.

患难之交才是真朋友。
A friend in need is a friend indeed.

他的成功是由于勤勉和许多朋友的帮助。
He succeeded both because he was industrious and because he had many friends to help him.

他除你之外就没有别的朋友了。
He has no friend other than you.