n.怒氣；生氣

n.毛屑；頭皮屑

The children get the teacher's dander up when they make a lot of noise. 孩子們大聲吵鬧使老師很生氣。

One view is that allergies can develop as the result of childhood exposure to certain irritants, such as dust or animal dander, while the immune system is not yet mature. 一種觀點(diǎn)認(rèn)為，過(guò)敏之所以會(huì)產(chǎn)生，是由于人們?cè)谕陼r(shí)期當(dāng)免疫系統(tǒng)尚未成熟時(shí)曝露于某些刺激物之下，如灰塵或動(dòng)物毛屑。