
n.軸;中樞
The earth turns (ie rotates) on its axis once every 24 hours. 地球每24小時(shí)自轉(zhuǎn)一圈。
A wheel revolves round/on its axis. 輪子是繞軸旋轉(zhuǎn)的。
The earth's axis is the line between the North and South Poles. 地軸是南北極之間的線。
n.過(guò)敏性反應(yīng)
n.實(shí)踐;現(xiàn)實(shí);習(xí)慣;慣例;練習(xí)
n.預(yù)防
n.[醫(yī)]鼻出血;鼻衄