Top-level activities are simply rolled-up from the lower levels.
顶层活动是从各个低层级累积得到的。
It's because not all insects cause us to shriek and go running for a rolled-up newspaper.
所以，并不是所有昆虫都会惹得我们高声尖叫，满屋乱跑地找张报纸卷起就打。
Carbon nanotubes are rolled-up sheets of graphite thousands of times thinner than a human hair.
碳纳米管是由比人的头发细千倍的石墨板卷曲成的管状结构。
To feed the demand, English ships tied up to Virginia docks and took in barrels of rolled-up tobacco leaves.
为了满足需要，英国的商船停靠在弗吉尼亚的码头装上捆扎好的成桶的烟叶。
Ubiquitous devices, including smart phones, display far more than a few seconds, but they can't be rolled up like a newspaper.
很多设备，包括智能手机，可以显示不止几秒的影像，但是他们都不能像报纸一样可以卷起来。
If a human player manages to "stun" a zombie with a toy gun or a pair of rolled up socks (socks are recommended by school faculties), they are safe for the time being.
如果一个扮演人类的玩家用玩具枪或一双卷起来的袜子打晕一只僵尸(袜子这个主意是由学校老师的提出的)，那么他们就暂时安全了。
She rolled [turned] up her sleeves and set to work.
她卷起袖子大干起来。
Toad jumped, rolled down a short embankment, picked himself up unhurt, scrambled into the wood and hid.
托德纵身一跳，滚下一段短短的路基，毫发无损地爬了起来，爬进树林，藏了起来。
我们把地毯卷了起来。
Stein rolled up the paper bag with the money inside.
斯坦把装着钱的纸袋卷了起来。
Disappointed, Yu rolled up his resume in his hand and moved on.
于渺失望地将简历卷在手中继续前行。
When he talks about seeing the sky rolled up like a scroll he means that quite literally.
当他写道，看见天像书卷一样卷起来时,不要以为他用的是比喻手法。
Choose a chair that supports your back, including the curve in your lower back (if not, place a rolled up towel or pillow behind your lower back for support).
找把能靠背的椅子，椅背曲线要与自己的背部贴合，或者在你的背后卷条毛巾或放个枕头。
She went to a cupboard, and drew out a large skin rolled up.
她走到一个橱柜前，拿出一大张卷起来的皮。
He rolled up the map and put it on the desk.
他把地图卷起来放在写字台上。
于是人们把它卷了起来。
Duxbury thinks these grooves were created when an asteroid impact threw up large boulders that rolled from the crater.
克斯·伯里认为，小行星撞击福波斯地表后，产生的巨大岩石滚过陨石坑，就形成了这些凹痕。
Reports this week hint that phones using the technology - which can be "rolled up" and survive hammer blows - will appear in the second quarter of next year.
根据本周的报道，这款手机采用可以“翻卷”的技术，可以承受捶打，将于明年第二季度上市。
I rolled up my sleeves and pitched into cleaning the kitchen.
我卷起袖子，大搞厨房卫生。
Clothes rolled up in the towel and stowed in the panniers; check. The headlight battery pack on the charger; check.
衣服用毛巾卷起，塞进挂篮里；没问题。车前灯电池还在充电中；没问题。
Silk, light and easily rolled up, could travel overland.
丝绸很轻，且易卷，所以可以走陆路运输。
This material was called 'parchment' and could be rolled up into a scroll.
这种材料叫做“羊皮纸”，还可以卷成卷轴。
After that, Abe rolled up his sleeves and worked on a sketch of his sister.
那之后，艾贝卷起袖子给姐姐画一幅素描。
Make swords out of rolled up newspaper, and have a pretend sword fight.
把报纸卷起当剑，来个宝剑激战。
The jacket was too big for him so he rolled up the cuffs.
这件夹克对他来说太大了，所以他卷起了袖口。
The screen could one day be used as a light-weight television that could be rolled up after use.
这种荧光屏总有一天会被用来制作轻质电视，看完节目之后可以将它收卷起来。
The next morning they got up late, drank whiskey, fished a little, took down their tents, rolled their sleeping bags, gathered their stuff, and hiked out.
天亮之后他们起来得很晚，喝了些威士忌，又钓会儿鱼，然后把帐篷拆掉，卷起睡袋，收拾好东西，一路走回到停车的地方。
Some could even be rolled up and slipped into your pocket like a piece of electronic paper.
一些甚至能像一张电子纸一样，被卷起来，塞进你的口袋中。
Some could even be rolled up and slipped into your pocket like a piece of electronic paper.
一些甚至能像一张电子纸一样，被卷起来，塞进你的口袋中。
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