Observing
a. 注意觀察的, 留心的, 觀察力敏銳的
? 同義詞
??? 情景例句
I'm meeting my girlfriend at 6:00.
我約好六點跟我女朋友見面。
Who wrote that music?
那首音樂是誰寫的？
In his own lifetime Galileo was the centre of violent controversy;
伽利略在世時是激烈論戰的中心。