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。
They have also assumed that all animals, and probably other organisms such as trees,
人们不但认识到所有的动物,大概也认识到所有的有机物,如树木,