Actinotherapeutic
[醫] 射線療法的
??? 情景例句
Sorry, I'm afraid I'm busy tonight.
對不起， 今晚我恐怕沒空。
She began playing the violin when she was nine.
九歲的時候，她開始拉小提琴。
What was the population of the world in 1950?
1950年世界人口是多少？