At the tips of their fingers是什么意思?这是一个成语吗?

母语人士的回答
Rebecca
At the tips of one's fingers意思是在手边,在手边。它通常与信息有关。这不是成语,是成语。示例: With access to the internet, billions of people have information at the tips of their fingers. (数十亿人可以通过访问 Internet 即时访问信息。) 示例: The opportunity was at your fingertips, but you didn't take it. (机会就在我眼前,但我没有抓住它。)