Unnail
vt.拔除…上的钉子, 拔钉松开
🗣️ 情景例句
Since I retired,
自从我退休以后，
May I help you?
要我帮忙吗？
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。