评论
打印
1.Three of the world's main space agencies could start using this technique to make buildings for a permanent moon base.
permanent 永久的
Heavy drinking can cause permanent damage to the brain.
酗酒能造成永久性大脑损伤。
2.We have seen that a waste product, such as the urine of the personnel who occupy the moon bases, could be used.
occupy 居住
There were over 40 tenants, all occupying one wing of the hospital
共有40多位房客，他们全部住在这家医院的一个病区。
