Thorotrase
胶质二氧化钍
🗣️ 情景例句
Not at all. Hope you come again.
不客气。希望你能再来。
The students tumbled over each other as they got off the bus.
学生们下车的时候，由于拥挤一个叠一个的摔倒了。
'Do not touch the exhibits. Some of them are dangerous!'
“切勿触摸展品，某些展品有危险！”