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
If she is stupid, she's at any rate pleasant to look at.
如果说她头脑不灵，她这人至少容貌不错。
You've got plenty of time. That's $7.65.
你还富有很多时间。请付7。65美元。
Of course, the Hubble is above the earth's atmosphere, so it will soon be sending us the clearest pictures of the stars and distant galaxies that we have ever seen.
当然，哈勃位于地球的大气层之外，因此，它很快就会给我们传送我们所见到过的、有关行星和远距离星系的最清晰的照片。