[医] P. r. n.，pro re nata，S. O. S.，S. op. s. ；
[例句] 必要时可以把它当作武器. At a pinch it can be used as a weapon.
[例句] 必要时, 他们愿为国捐躯. They were ready to die , if necessary, for their country.
time interval，period of time ；
[例句] 这档新闻节目每周在黄金时段播出4次。 The news programme goes out four times a week at peak time.
[例句] 在交通的晚高峰时段，这里通常被车辆堵得水泄不通。 During the evening rush hour it was often solid with vehicles.
fashion shop ；
[例句] 这些纺织品被批发给零售商、时装店和其他制造商。 The fabrics are sold wholesale to retailers, fashion houses, and other manufacturers.
[例句] 时装店和美容院就在区内，非常方便。 A boutique and beauty salon are conveniently located within the grounds.
modern，fashionable，modish，stylish，in vogue ；
[例句] 现在政界讲究的无非是合适的发型和时髦的衣着。 Now politics is all about the right haircut and a sharp suit.
[例句] 他们的休闲服系列瞄准的是追求时髦的13到25岁青少年。 Their range of leisurewear is aimed at fashion-conscious 13 to 25 year-olds.
count down，[电影]Countdown；
[例句] 开始倒计时之前还有3件事要做。 There were three more things to do before countdown.
[例句] 诺丁山狂欢节已经进入了最后几个小时的倒计时。 The countdown to the Notting Hill Carnival is in its final hours.
faddish ；
[例句] 生孩子是使自己不再年轻时尚的最快方法。 Having children was the quickest way to lose your street cred.
[例句] 其店铺跻身欧陆最时尚的店铺之列。 Its shops are among the most stylish on the Continent.
[医] Semih.，half-hour，halfhour ；
[例句] 我们只是坐了一会,聊了大约半小时. We just sat and talked for half an hour or so.
[例句] 史蒂夫在前半小时里没说几句话. Steve barely said a handful of words during the first half hour.
here ；
[例句] 到这时根本就不讲什么逻辑了。 By now all logic had gone out of the window.
[例句] 就在这时，一辆轿车在房前停下了。 At this moment a car stopped at the house.
at that time ；
[例句] 就在那时，我恰好环顾了下四周。 It was just then that I chanced to look round.
[例句] 就在那时，博物馆陷入了一片漆黑。 At that instant the museum was plunged into total darkness.
--
[例句] 汽车在路上转弯时放慢了速度. The automobile slowed down to go around the curves in the road.
[例句] 船转弯时倾向一边. The ship heeled as it turned.
--
[例句] 卡片向上移动时,波就从右向左传播. Moving the card upward produces a wave traveling from right to left.
[例句] 只有当货币工资移动时,不稳定才会出现. It is only when money wages move that instability declares itself.
--
[例句] 在电视上说话时你必须很谨慎。 You have to be careful what you say on telly.
[例句] 小孩子说话时喜欢用上热烈、表达喜爱的肢体触碰。 The children are very tactile with warm, loving natures.
--
[例句] 有的母亲分娩时选择硬膜外麻醉。 Some mothers choose to have an epidural when giving birth.
[例句] 母亲们了解分娩时的痛苦. Mothers know the travail of giving birth to a child.
--
[例句] 汉利刚搬进局长办公室办公时,似乎不太自然. Hanley seemed ill at ease when he first moved into the Director - General's office.
[例句] 接到香港办公时转发的紧急通知, 请大家一定关注. Dear All, Just receive urgent notice from HK office for your attention.
--
[例句] 20世纪80年代初他突然在时尚界活跃起来。 He burst onto the fashion scene in the early 1980s.
[例句] 可可·香奈儿在半个世纪里一直主宰着时尚界。 Coco Chanel reigned over fashion for half a century.
--
[例句] 他不在时她跟上校一起喝了茶。 While he was gone she had tea with the Colonel.
[例句] 我不在时,请照常干活. Please carry on as usual while I am away.
--
[例句] 跳舞时要放松. Relax when you dance.
[例句] 我觉得他跳舞时显得极其笨拙. I thought him terribly ungainly when he danced.
--
[例句] 当她在桌前坐下时，却发现自己不知道该说些什么了。 When she sat down at her desk she found that the words evaded her.
[例句] 坐下时我的腿还会痛。 My leg still aches when I sit down.
--
[例句] 我们爬山时,他掉队了. He fell behind when we were climbing the mountain.
[例句] 爬山时,汽车发动机可能发生故障. The car engine may stall as we go up the hill.
--
[例句] 他呼吸时胸部发出轻微的响声. He has a slight wheeze in his chest.
[例句] 他呼吸时觉得吸进肺部的空气冷得刺人. The air came into his lungs sharp and cold as he breathed.