Thorpe next set out to determine exactly when the chaffinch learns to sing.接着,索普就开始研究苍头燕雀是在什么时候学唱歌的.The chaffinch has three or four songs and produces them in a specific order.苍头燕雀合唱三、四种歌,唱的时候按着一定的先后次序....
The network took it off the air in 1971.1971年，广播网停播了这个节目。The station goes off the air after midnight.广播电台后半夜停止广播.This message did not reach me until after the programme went off the air.直到节目播出后，我才获知这条消息。...
I guessed something wasn't quite kosher.我觉得有点不对劲儿。All their food is strictly kosher.他们所有的食物都完全符合犹太教食规.There's a Kosher restaurant on 21 st street.21号大街上有一家犹太餐馆....
In this enlargement, barley, alfalfa, and sugar beets can be differentiated.在这张放大的照片上, 大麦, 苜蓿和甜菜都能被区分开.During rationing we had a sugar allocation.定量配给时期，糖是限量配给的。Maple sugar is made from the sap of maple trees.枫糖是由枫树的树液制成...
Pulmonary embolism ( PE ) is one of the common clinical pathological syndromes.肺 栓塞 是常见的临床病理综合征之一.This paper modified silane crosslinked polyethylene ( PE ) insulant for power cable with ethylene - vinyl acetate copolyme...