"Er, I wonder if you'd be using your power-saw this morning, " the neighbor began.
“嗯，我想知道你今天早上是否用这把电动锯？” 邻居又开始借东西了。
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Stacked near the checkout counters, and as colorful as a Fisher-Price toy, it is a not-so-serious-looking power tool: a battery-operated saw-and-drill combination.
Solar powersaw significant advances this year, as conventional-solar-panel makers cuts costs and improved efficiency and laboratories rolled out advanced prototypes.