Take food collecting, for example.

　　以收集食物為例。

　　Let's take Mount Etna for example.

　　讓我們以埃特納火山為例。

　　A colleague, for example?

　　比如說(shuō)同事？

　　Humans cannot digest plants such as grass.

　　人不能消化草類(lèi)植物。

　　Wild flowers such as primroses are becoming rare.

　　報春花之類(lèi)的野花越來(lái)越稀罕了。

　　Opportunities such as this did not come every day.

　　這樣的機會(huì )不是天天都有的。