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。
but something was there, and he will not rest till he has captured it.
可是,好像还有什么东西存在着,不把它捕捉到,作家是不会罢休的。