She was screwing up her eyes against the onrush of air.一阵风突然吹来，她眯起了眼睛。For decades rich nations have been screwing money out of poor nations.富国压榨穷国长达数十载。The child is screwing water out of a sponge.小孩正把海绵中的水挤出来....
Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.Esomeprazole, a new proton pump inhibitor, is the S - isomer of omeprazole.艾司奥美拉唑是一种新型的质子泵抑制剂, 它是奥美拉唑的S - 型光学异构体.For example , 2, 6 - Dinitrotoluene and 2, 4 - Dinit...