and用法 Don borke his arm when he (sled)and fell on the ice.
2个回答

这里 when he (sled)and fell on the ice 他驾雪橇时跌倒在冰上(这种表达似乎很正常,两个动作一先一后)

比较一下 :when he was sledding and fell on the ice.您看,这种表达是否很别扭?

不如把从句再变成一个主从复合句:When he was sledding ,he fell on the ice.(当然,放在原句中不适合)

另外,sled 的现在分词是sledding,而不是 sliding ,请楼主明鉴.