Benzalin
苯胺黑
🗣️ 情景例句
Nice whether we are having.
天气真好。
I could only guess the number of people in the room.
我无法正确地猜测房间里面有多少人。
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。