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
Please sit down, Alexandra.
请坐 ，Alexandra。
Could you tell me where is the exit?
你能不是告诉我出口在哪里？
The only regular visitors to the monastery in winter are parties of skiers who go there at Christmas and Easter.
冬天常来修道院参观的只有一批批滑雪者。他们在圣诞节或复活节到那儿去。