/ˈfɜ:stli ||; ˈfɝstlɪ/adv used to introduce the first point in a list （用于列出第一点）首先:
They were angry firstly because they had to pay extra, and secondly because no one had told them about it. 他们气愤的原因有两个﹕第一，他们要支付额外的费用；第二，之前没有人把这事告诉过他们。 [SYN] first 同义词为first