Tracers
(tracer 的复数) n. 追踪者, 描图者, 描绘工具\\n[计] 跟踪程序
🗣️ 情景例句
That sounds good. Let's soak up a little vitamin D.
听起来不错，让我们摄入一点维生素D吧。
So they are content to let him go to America.
所以他们满意地让他去美国了。
Forty-two years later a tunnel was actually begun.
42年以后，隧道实际已经开始建了。