My husband had a very low sperm count.我丈夫的精子数很低。From the body, the sperm whale is smaller than the killer whale.从体形上看, 抹香鲸比虎鲸要小.The sperm whale has about thirty teeth in its lower jaw.在抹香鲸的下颚上大约有30颗牙齿.Only one sperm fert...
曾为水井供水的蓄水层正式宣告干涸了。The aquifer which had once fed the wells was pronounced dry.环保主义者称引流河水会导致地下水位下降和水井干枯。Environmentalists say that diverting water from the river will lower the water table and dry out wells.水井的数量能较准确地反映水需...