Bgd
abbr. 锗酸铋探测器（bismuth germanate detector）
🗣️ 情景例句
Be careful not to drink the water in__.
小心点儿，不要乱喝水。
When the accident happened, I was cleaning the car.
当意外事故发生的时候，我在清理汽车。
When Aunt Huang came back, I was so tired. In the evening Liu Ming came to see me.
当黄阿姨回来的时候，我累极了。晚上刘明来看我。