Dear Xiaoqiang,I am writing to express my heartfelt gratitude.

亲爱的小强：我写信是为了表达我衷心的感谢。

I am referring to that unfortunate accident the other day,when I was knocked off my bike by a taxi。

我指的是那天我被一辆出租车从自行车上撞下来的不幸事件。

If it had not been for your timely assistance in giving me first aid,

如果没有你及时为我急救，

I fear that the consequences might have been much more serious.

恐怕后果会更严重。

Everyone agrees that it was your quick-witted response in that emergency that has led to this satisfactory outcome.

大家都认为正是您在那个紧要关头的快速反应带来了令人满意的结果。

Although nowadays people in mounting numbers talk about the need to be unselfish,

尽管现在越来越多的人谈论到大公无私的必要性，

we see very few people practice what they preach.

但是很少看到有人言行一致。

If there were more people like you, this world would be a much nicer place.

如果有更多人像您一样，世界会更美好。

Yours sincerely, Li Ming

您真诚的，李明