Article 15 A securities firm shall wait until this Corporation signs and returns the market usage contract, and paid the settlement and clearing fund before it may trade in the Exchange.
2
她对是否签这个合同还犹豫不决。
She's hesitant about signing the contract.
《牛津词典》
3
他们还共同宣布启动中智关于商签自由贸易协定的谈判。
They declared the launch of the negotiation on signing the free trade agreement through consultation between China and Chile.