Flame tracer
曳光弹
🧩 词语组成解析
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
It's shown in the price list. They are the latest prices.
价钱都列在价格表上。这是最新的报价。
Sorry, I'm engaged.
对不起，我有约在先了。
In the conversion of saliva into poison, one might suppose that a fixed process took place.
人们可能认为，唾液转变成毒液，其中有固定的程序。