我的朋友们刷牙一上一下的呢。
你能把你的行李放在秤上一下吗？
这就是上一下冬天我们居住的屋子吗？
请把钟上一下。
我们可以在下—个加油站停一下车吗？我要上一下厕所。
它使用一个安装在后面的推进式螺旋桨并有一对一上一下反向旋转的主旋翼。
The X2 uses a pusher propeller mounted at the rear and has a pair of contra-rotating main rotors, one positioned above the other.
他们一直过着一上一下的生活，就是为了这种信心；这是一种倚靠环境的信心。
They led an up and down life because of this kind of faith; it was a faith that depended upon circumstances.
你要做两个盆子，一上一下。两个盆子之间的空隙能让泥泵通到下面盆子的底部。
One would create two basins one on top of the other the space between the two basins would allow a dredge pump to access the bottom of the lower basin.
纪昌回到家，就照着飞卫的话，仰天躺在他妻子的织布机下，眼睛紧盯着一上一下的脚踢子。
Ji Chang returned home. Following Fei Wei's instructions, he lay face up under his wife's loom, with his eyes fixed on the foot tweezers moving up and down.
这也就是说，即便电梯厢本身的5根钢绳全部拆除，因为有一上一下的双保险，电梯也不会发生坠落。
This means that even if the car itself 5 steel rope off completely, because the one on the double insurance, the elevator will not fall.
真正看到她们的那天是我碰巧走在她们后面，那古怪的一上一下晃动的一担柴禾引起了我对它下面的人的注意。
It was only that one day I happened to be walking behind them, and the curious up-and-down motion of a load of wood drew my attention to the human being beneath it.
不像运行起来比它更稳定的直列六缸引擎或者极其流畅的V - 12引擎，卑微的四缸引擎会以一种比自身机轴转速高两倍的频率产生一上一下的振动。
Unlike the better balanced straight-six or even the ultra-smooth V-12 engine, the humble four-cylinder generates an up and down vibration with a frequency of twice the crankshaft's rotational speed.
如果你想去上1点的课，你可以这样做，但是一定要和我的助教安排一下。
If you want to go to class at 1:00, you're welcome to do so, but please arrange it with my assistants.
她犹豫了一下，然后把手搭在格雷斯的臂膀上。
建议你读一下房主保险单和汽车保险单上的小号印刷字。
You are advised to read the small print of homeowner and car insurance policies.
我将用这根针在你手指上轻轻扎一下。
I'm going to give your finger a little prick with this needle.
他猛一下砸在他的肩膀上。
查看一下比萨饼的价格吧—我们实际上是在白送！
Check out the prices of our pizzas—we're virtually giving them away!
实际上我们确实在考虑设一个职位。你为什么不填一下我们的申请表呢？
Actually we do have a position in mind. Why don't you fill out our application?
将小腿肉翻一下，烹调时在上面淋上一两次油。
她用螺丝刀在他胳膊上戳了一下。
他经过时蹭了她一下，使她从凳子上摔了下来。
他在驴的屁股上狠狠地捅了一下。
让我在电脑上查一下。
我们可以在乘客名单上查一下。
她向前倾了倾身子，把脸贴在窗户上，这时马车剧烈地摇晃了一下。
She leaned forward and pressed her face against the window just as the carriage gave a big jolt.
接下来，你应该决定一下在不同科目上花多少时间。
Next, you should decide how much time you should spend on different subjects.
砾石平原上的一株不起眼的灌木移动了一下，变成了一只鸵鸟。
An unremarkable shrub on the gravel plain moved and resolved into an ostrich.
砾石平原上的一株不起眼的灌木移动了一下，变成了一只鸵鸟。
An unremarkable shrub on the gravel plain moved and resolved into an ostrich.
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