第1个回答 2011-08-14
i'm glad to serve others.本回答被提问者采纳
第2个回答 2011-08-14
I feel happy to be of some help to others.
I feel happy to give service to other people
I feel happy to give service to other people
第3个回答 2011-08-14
it's my pleasure to serve people.
第4个回答 2011-08-14
To serve others, I am very happy
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