Derivant
衍生物, 诱导剂
🗣️ 情景例句
They are eager to learn English.
他们急着要学英语。
He has never been out of China, so he is very excited about liveing abroad.
他以前从未出过国，因此对出国很兴奋。
In his twenties Frank used to make spare parts for aeroplanes.
20多岁的时候，弗兰克曾生产飞机零配件。