水中的一点点酸就会杀死鱼卵和小鱼.Fish eggs and young fish are killed by even a little acid in the water.鱼卵在马拉松运动员衣服上做 什么 ?What are fish eggs doing on a marathon runner's shirt?鱼卵比它们长成后的鱼致密250倍.Roe are 250 times more compact than th...
Will you count off the figures one by one so that I can write them down?能不能请你把那些数目字逐个报一下,这样我好记下来?The teacher told the children to count off from right to left.教师叫孩子们自右向左报数.We count off five men and five women to help the...