Immediately , rose breeders began using it to hybridize red roses for cultivation.当时, 它一直生长在中国山区的野地里.If the probe sequence is able to hybridize tothe target, it will theand its fluorescence persists.如果探针序列能够和目标杂交, 它将不和金属...
Poverty leads to slums, which are an eyesore and a health hazard.贫困产生了贫民窟，那里不仅有碍观瞻，而且卫生隐患严重。the poverty and squalor of the slums贫民窟的贫穷和肮脏The President's visit to the slums was a mere pose.总统到贫民区去访问只不过是做做样子罢了....
A number of staircases ascend from the cobbled streets onto the ramparts.一段石阶从鹅卵石路上一直向上直通城墙。Then we ascend steeply through forests of rhododendron.然后我们在杜鹃花丛中沿着陡坡向上爬。The path started to ascend more steeply.小径开始陡峭而上。...