Backshot
消声器内爆音; 排气管内爆音
🗣️ 情景例句
Dear Mr. Lee.
亲爱的李先生。
Please check the date.
请核实一下日期。
for fear the agents of other firms should be able to trace the kind of research they are likely to be undertaking.
他们生怕别的公司的情报人员据此摸到他们可能要从事的某项科研项目。