They've promised to keep both we quality and the quantity of the 300 bicycles in conformity with the contract stipulations.
他们已承诺那300辆自行车的质量和数量一定与合同规定相吻合。
She does, doesn't she! I read she's twenty-nine,- but she must be at least forty.
是的,谁说不是呢!我从报上看到她是29岁,但她一定至少有40岁了。