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1·The hope is that this mad-dash scramble will allow scientists to pass along the vital traits of these rugged relatives, such as drought and flood tolerance, to our vulnerable crop varieties.

希望这场疯狂冲刺式的竞争能让科学家将那些强健亲缘的重要特性，如干旱和洪水耐受力传递给我们脆弱的作物品种。

2·A passerby saw a man with a moustache, carrying a parcel under his arm, dash over the street crossing, along to the crossroads.

一个路过的人看见有一个长着小胡子的人夹着一个小包裹冲过十字路口。