This paper summarized classification, functions, varieties of colorant and factors affecting coloration of salmon and bulltrout.本文阐述了着色剂的分类及作用 、 着色剂种类的选择及影响鲑鳟鱼着色效果的因素....
The two sides met to put their signatures to a formal agreement.双方聚首签署一份正式协议。1.5 million signatures have been collected.已经收集到150万人的签名。These two signatures are very similar, can you tell them apart?这两处签名非常接近, 你能把它们区分开来 吗 ...