Davy lamp
戴维安全灯（矿工用的）
🧩 词语组成解析
n. 宣誓书
lamp
[læmp]
n. 灯;发热灯，照射灯;
🗣️ 情景例句
The firm repaid her hard work with a bonus.
公司发给她奖金以酬谢她的努力工作。
It should be there at 11:45, but it may be a little late.
应该是11点45分到那里，但也可能稍晚一点。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。