roll-on

England and Austria laughed in scorn at the idea of transporting accross the Alps,where "no wheel had ever rolled,or by any possibility could roll,"an army of sixty thousand men,with ponderous weapon,and tons of cannon and baggage,and all the huge stuff of war.

临行前，士兵们以及其随身物品都接受了一次严格检查。穿破的鞋子、衣服，以及缺失零部件的步枪都被重新修整了一番，随即士兵们便跟着信心十足的将领踏上了征程。

I'm going to call the roll.

我要开点名了。

Now I'll call the roll.

现在我要点名了。

I'll call the roll now.

我要开始点名了。

Now I'll call the roll .

现在我点名了。

First, I will call the roll.

首先，我要点名。

Now I'm going to call the roll⑨.

现在我要点名了。

I don't know if professor have call the roll ?

我不知道教授是不是已经点了名？

I don't know whether the professor have call the roll or not.

我不知道教授是不是已经点了名？

I don't know whether professor has made the roll call.

我不知道教授是不是已经点了名？

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。