certainly/ˈsɜːtənlɪ/
adv.1. 确实地；无疑地'Certainly,' the girl said, 'but they are for next Wednesday's performance.'”当然可以，“姑娘答道，”但这两张票是下星期三的戏票。“
Victory certainly belongs to the people.胜利一定属于人民。
2. （客气或强调的回答法）当然；不错Will you help me please? Certainly!请你帮助我好吗？当然可以！
'Will you lend me some money?' 'Certainly not!''你能借我一点钱吗？''当然不行!'
May I borrow your ballpen? Certainly!我可以借用你的圆珠笔吗？当然可以。