Mountain climbing can be very tiring, so Colin and I will make sure that we get plenty of rest.

爬山会很累，所以我和科林会确保我们得到充足的休息。

This lesson was no more reasonable than that of avoiding sheepherding or mountain climbing.

这课比避免牧羊或爬山课程更合理。

Mary likes mountain climbing.

玛丽喜欢爬山。

Finally, we decided to go mountain climbing.

最后，我们决定去爬山。

This weekend we plan to go mountain climbing.

这个周末莪们筹划去登山。