insist on的用法和樣例：
例句
- He insisted on immediate payment.
他堅持要求對方立即付款。 - We can use wooden cases for packing if you insist.
如果你們堅持，我們可以使用木箱包裝。 - I must insist on more regular hours.
我必須強調起居定時(shí)。 - The teacher urged on us the necessity of practice.
老師向我們強調練習的必要性。 - They insist that I stay there for supper.
他們堅決要求讓我留下吃晚飯。 - We insisted on a refund of the full amount.
我們堅決要求全額退款。
