Can they be, when up to half their inhabitants are gone and survivors know it could happen again?
当他们一半的居民都已经逝去，而幸存者知道这又将再一次发生，他们能够做到吗？
Subsequent waves of anti-Semitism did not dislodge him: not even one in 1968 when up to 20,000 Jews left, including his wife and daughter.
随后的反犹浪潮并没有迫使他离开波兰，即使在1968年，有近20000犹太人离开时，其中包括他的妻子和女儿，他也未曾有过离开这个国家的念头。
The most severe pandemic of the past century occurred in 1918, when up to 50 million people died, and was caused by the H1N1 flu strain.
上世纪最严重的一次大流行发生在1918年，造成了近5000万人的死亡，其病源为H1N1型流感病毒。
In late 2008, Ireland recalled many tons of pork meat and pork products when up to 200 times more dioxins than the safe limit were detected in samples of pork.
2008年末，爱尔兰因在猪肉抽样检查中检测出二恶英含量超出安全指标的200倍，召回大量猪肉和猪肉产品。
The table folds up when not in use.
这桌子不用时可以折叠起来。
When I got knocked up, the whole town knew it.
我肚子大起来时，全镇的人都知道了。
There were occasions when we slipped up.
我们有疏忽的一些时候。
The class got up when the teacher came in.
老师进来时全班起立。
Everyone clapped us when we went up to get our prize.
我们上前领奖时，大家都为我们鼓掌。
The speaker was just winding up when the door was flung open.
演讲者刚要结束讲话时门突然被推开了。
The boy was very unsteady and had staggered around when he got up.
那男孩很难站稳，起身时摇摇晃晃。
She picked up Spanish when she was living in Mexico.
她旅居墨西哥时顺便学会了西班牙语。
He always turns up just when you least expect him.
他总是在你最意料不到的时候出现。
I was feeling fine when I got up this morning.
今天早上我起床时感觉很舒服。
Short skirts tend to ride up when you sit down.
坐下来的时候，短裙就会往上收。
Everyone would stand up when the teacher entered the classroom.
老师走进教室时大家都会起立。
Ken was in the act of paying his bill when Neil came up behind him.
当尼尔走到他身后时，肯正在付账单。
When children end up taking care of their parents, it is a strange role reversal indeed.
当孩子们最终照看起父母来的时候，这确实是一个奇怪的角色转变。
She closed up when I asked about her family.
我问起她的家人时她避而不谈。
They were clearing up when the second bomb exploded.
他们在清理时第二颗炸弹爆炸了。
She choked up when she began to talk about her mother.
她开始谈起母亲时，便哽咽着说不出话来。
She was startled when Lisa popped up at the door all smiles.
莉萨满面笑容地突然出现在门口时她吃了一惊。
A police officer was killed when his car blew up.
一名警官在其汽车爆炸时遇难。
He soon perked up when his friends arrived.
朋友一来他就精神起来了。
It was getting late when she finally showed up.
天色已晚，她终于赶到了。
What do you want to be when you're grown-up?
你长大后想做什么？
When do you break up for Christmas?
你们什么时候放假过圣诞节？
The menu pops up when you click twice on the mouse.
双击鼠标，选单便会弹出来。
When they'd finally shut up, I started again.
等他们最终住了嘴，我又重新开始讲。
When I stood up to her, her right cheek would begin to twitch.
每当我直面她时，她的右脸颊就会开始抽动。
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