But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope.
只有今天好好地生活,昨天才会变成幸福的回忆,明天才会成为希望的憧憬。
This echo-location in bats is often compared with radar, the principle of which is similar.
蝙蝠这种回声定位常常可与雷达相比较,其原理是相似的。