Smoking tracer mixture
[化] 发烟迹剂
🧩 词语组成解析
smoking
['sməukiŋ]
n. 吸烟，抽烟;
v. 冒烟( smoke的现在分词);抽烟;用烟熏制;吸（烟）;
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
He's writing to invite me
他写信邀请我
Turn left at the second light and then go straight for two blocks.
到第2排红绿灯处往左拐，然后一直往前走，过两个街区。
and so on up to the size of the globe.
如此等等，一直到全球的范围。