step-up
a.
1.把电压升高的，递升的
1.把电压升高的，递升的
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- It is the first step that costs troublesome
万事开头难收藏 - Here was a formidable and measureless step.
这是一个重大但难以预测的步骤。收藏 - It is clear that obesity is a fantastically complicated condition, with a fantastic number of spots for science to step in and set things right.
十分清楚的是，肥胖是一种极为复杂的病症，对科学家来说就有着极多的问题需要深入研究并正确解决它们。收藏 - Ford took a big step in this direction with the Mondeo-its latest try at a "world car".
向着这个目标，福特在其新产品“蒙蒂欧”上迈出一大步。蒙蒂欧是福特公司的最新“世界车”尝试。收藏 - Taking the first step proverbially costs the most.
常言道，万事开头难。收藏
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