单词sea-of-tranquillity
网络: 静海;透明海
We made a perfect landing beside a small crater in the Sea of Tranquillity.
我们在静海的一个小陨石坑旁安全着陆。
The Apollo 11 Lunar Module landed in the Sea of Tranquillity.
太阳神11号登月舱在宁静海降落。