肺细胞约每周新老更替一次。Lung cells die and are replaced about once a week.昼夜更替.Day and night alternate.从事高等教育的人员新老更替极其缓慢。There has been very little renewal of personnel in higher education....
它们的鬃毛直立起来,在风中就像一面面硬硬的黑色三角旗.Their manes streamed like stiff black pennants in the wind.他那矛枪上扎着一面小三角旗, 在强劲的东风中飘动.A small pennon, flag, or streamer borne on a lance.同时它还制作烟灰缸 、 酒吧餐巾、杯垫子 、 杯托子 、 足球赛用的三角旗以及诸如此类的物品用于销售.Bud ash...
剪掉芦笋上粗硬或老掉的梗子。Trim any tough or woody stalks from the asparagus.厨师安东用龙虾和芦笋搭配，制作出了一道口感很好的菜肴。Anton the chef concocts a sensual coupling of lobster and asparagus.现在英国芦笋正当令。Now British asparagus is in season....
The area has been the scene of sporadic artillery duels over the last six weeks.在过去的6周中，该地区曾经发生过零星的炮击。Hyde Park also became a favourite place for duels.海德公园也成了决斗的好地方.Beno : To practicing PvP, you have duels and BG playin...
This week, insurgents attacked the peacekeepers'positions on three consecutive days.这个星期, 暴乱分子又连续3天对维和部队哨所发动袭击.International peacekeepers are trying to restore order in East Timor.国际维和部队正在东帝汶试图重新恢复该地区秩序.Peacekeepers...