问题补充:
You can see the stars on a clear night, but in the daytime they are
A. unbelievable
B. invisible
C. inaccessible
D. unavailable
答案:
A. unbelievable
(答案→)B. invisible
C. inaccessible
D. unavailable
解析:句意:在晴朗的夜里你可以看见星星,但是白天这些星星是看不见的。invisible:看不见的;unbelievable:不可信的;inaccessible:不可接近的;unavailable:得不到的