在温暖的环境中，咳嗽和喷嚏传播疾病的速度要快得多。Coughs and sneezes spread infections much faster in a warm atmos-phere.门边的那些人马上同时打起喷嚏来.The people near the door began sneezing all at once.感冒时, 要打很多喷嚏.When you have a cold, you sneeze a lot....
Conversely, test made in full - scale boilers are usually difficult to reconcile.与此相反, 在工业规模的锅炉内所做的试验,也难于互相一致.And sale leather or flix criterion conversely, but economic benefits however prep above is former.而营销皮革或毛皮则反之,...