Spilt acid discolored the floor.泼出的酸弄得地板褪色。He had bad teeth, irregular and discolored.他牙齿长得不好，参差不齐而且有些发黄。Frequently, early in the disease, the skin is discolored by a marked erythema.常在疾病早期, 皮肤因有明显的红疹而变色.Charles looked r...
I think they saw it as a natural progression for me.我想他们认为这对我来说是顺理成章的。Both drugs slow the progression of HIV, but neither cures the disease.这两种药物都可以延缓艾滋病病情发展，但是都不能治愈这种疾病。I believe in progression, in taking risks, in neve...