It was a very frightening experience and they were very courageous.那是一次让人胆战心惊的经历，而他们表现得非常勇敢。You're brave and courageous. You can make it.你勇敢无畏，一定会获得成功。a very courageous decision十分勇敢的决定...
Ray was very giggly and joking all the time.蕾特别喜欢咯咯地笑，而且总是爱开玩笑。Neil's colleagues say he was actually in a joking, upbeat mood.内尔的同事们说他实际上在说笑逗乐，心情不错。You're joking. Are you serious?你准是在开玩笑。你是认真的吗？...
The chronometer - maker's expert hand plays an essential role in this process.生产精密时计的专家们的手工调试在这一工序中起着关键性的作用.a chronometer on a ship船上的精密仪记时计It is use in navigation, chronometer, and weather and so on.用于导航 、 天文和气象等领域...