So I explained the significance of the piece, and we added a drum roll at the beginning that would allow the audience of several hundred to rise to their feet and sing along with us.
于是我解释了这支乐器的重要性，然后我们在开头添加了鼓点滚音，这样可以促使几百名观众用脚踩着拍子，好跟随我们的音乐一起吟唱。
Greece and Portugal, in particular, have seen a sharp rise in their cost of finance and some investors have questioned their ability to roll over their debt.
尤其是希腊和葡萄牙已经见证了财政成本的飞速上涨，一些投资者质疑他们滚动还债的能力。
As these alternatives start to roll out in earnest, their rise, optimists hope, will become inexorable.
在这些替代品开始正式铺开的时候，乐观者认为其增长将不可动摇。
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