However, ballads were what people improvised out of daily life, and due to lack of means to record and preserve them in ancient times, they quickly disappeared without leaving much of a trace.
不过，歌谣本是人们在生活中随兴而发的东西，上古时代也没有保存和记载它们的方式，因此也就很快湮灭，不留痕迹。
We improvised some shelves out of planks of wood and bricks.
我们用木板和砖头临时搭了些架子。
He improvised a bookcase out of crates.
他用板条箱临时做成书架。
If you have ever held a cloth or handkerchief over your mouth to keep dust out of your lungs, you have created an improvised particulate filter.
如果你曾经用布或手绢捂住嘴来阻挡灰尘吸入，那么你就自创了简易微粒过滤器。
Decked out in glittering costumes on an improvised sound stage, the wicked court at last collapses under the weight of its own SINS.
在临时搭建的摄影棚中，在华丽服装的掩盖下，罪恶的王庭终于自食其果，土崩瓦解。
They would have to haul Frankie out of the woods on an improvised litter and drive him to Round Valley Veterinary Hospital, five miles away.
他们得把弗兰基用临时做的担架从树林里抬出来,开车把它送到5英里外圆谷地方的兽医院去。
He improvised a bandage out of a clean sheet.
他用干净的床单临时制作绷带。
He improvised a bed out of leaves.
他用叶子临时制作一张床。
He improvised a bed out of leaves.
他用叶子临时制作一张床。
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