Language Point 3

Social scientists and economists, farming experts and environmentalists pose this question ...(Para. 1)

expert: n. specialist

She is an expert in/at teaching children.

她是兒童教育專家。

We respect his skill because he is an expert at his work.

我們尊重他的技術(shù)，因?yàn)樗悄莻€(gè)行當(dāng)?shù)膶＜摇?/p>

pose: 1. vt. ask

He posed a difficult question to me.

他問了我一個(gè)很難的問題。

2. vi. stand or sit in a particular position to be drawn, photographed, etc.

She was employed by the art school to pose for student artists.

這個(gè)藝術(shù)學(xué)校雇她給學(xué)生做模特。