Crossing over The exchange of material between homologous chromatids by the formation of chiasmata.交換:同源染色單體之間形成交叉時遺傳物質(zhì)的交換現(xiàn)象.The exchange of prisoners of war was one of the key elements of the UN's peace plan.交換戰(zhàn)俘是聯(lián)...
This could intensify the risk of a nuclear exchange.這可能會加劇爆發(fā)核戰(zhàn)爭的危險。During the turmoil in the foreign-exchange markets the guilder remained strong.荷蘭盾在外匯交易市場的動蕩中保持堅挺。They exchange traveller's cheques at a different r...