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?
比如說同事？
Humans cannot digest plants such as grass.
人不能消化草類植物。
Wild flowers such as primroses are becoming rare.
報春花之類的野花越來越稀罕了。
Opportunities such as this did not come every day.
這樣的機會不是天天都有的。