fertility GREGMAT四级六级

The villagers took fertility symbols into the fields to ensure a good harvest.

农民们把丰产象征物拿到田里以确保好收成。

She was unable to conceive a child naturally and was offered fertility treatment.

她因不能自然怀孕而接受受孕治疗。

A green manure is a crop grown mainly to improve soil fertility.

种作物主要是为使土更加沃。

The paddy soil probably had a long history of tillage, and furthermore it had formed gley horizon and illuvium, but its fertility was not high either.

水稻土有较长耕作历史，并已形成了潜育层和潴育层，但土力并不高。

Not only major gene’s effect on fertility but also minor gene’s effect should be considered when utilize WCG to overcome semisterile between subspecies.

在利用广亲和基因克服亚种间的半不育性时不仅要考虑主基因对育性的作用，也不能忽视多基因对育性的影响。