Lack of access to safe water, poor housing, and unsanitary conditions all have a strong bearing on the health of the mother and child.
缺乏安全用水、住房条件差以及不卫生条件都对母亲和儿童的健康有很大的影响。
2
Discharge of raw sewage into the sea is unsanitary and unsafe.
向大海里倾倒污水既不卫生也不安全。
《柯林斯英汉双解大词典》
3
If big sums are to be spent on cleaning up environmental disasters, it is better to spend them on unglamorous but pressing problems such as unsanitary water in Third World countries.