The white sails billow with the breezes they catch.一张张白帆随着微风舞动。When these breezes reached the platform the palm - fronds would whisper.微风吹到平台时,棕榈叶片发出簌簌的低吟.Warm breezes from the South dried up the streets.来自南方的温暖和风吹干了街道。T...
一种叫作吡啶酮的新型抗艾滋病药物能促使艾滋病毒变异，使其不能繁殖，也不会再感染新的细胞。A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.用胺作为质子吸收体代替吡啶还是得到同样的结果.Amines other than pyridines have b...