helped //

has helped explain certain prevalent trends.

已经帮助解释某些普遍趋势。

These habits have helped companies earn billions of dollars when customers eat snacks or wipe counters almost without thinking, often in response to a carefully designed set of daily cues.

这些习惯帮助公司在顾客几乎不假思索地吃零食或擦拭台面时赚取了数十亿美元，而这些行为通常是对精心设计的一系列日常提示的反应。

It is quite possible that the homework helped.

作业可能确实起到了帮助作用。

Rats have been shown to engage in multiple forms of reciprocal help and cooperation, including what is referred to as direct reciprocity where a rat will help another rat that has previously helped them,” says Quinn.

Quinn说：'研究表明，老鼠会参与多种形式的互惠帮助与合作，包括所谓的直接互惠，即一只老鼠会帮助之前帮助过自己的另一只老鼠。'

We’d assumed we’d have to give it a moving head and tail, facial features, and put a scent on it to make it smell like a real rat, but that wasn’t necessary,”says Janet Wiles at the University of Queensland in Australia, who helped with the research.

澳大利亚昆士兰大学的Janet Wiles表示：'我们原本以为必须给它装上可动的头部和尾巴、面部特征，并让它散发出类似真实老鼠的气味，才能让它看起来更像一只老鼠，但事实证明这并不必要。' 她参与了这项研究。