1. A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him.
    年轻人看到日落, 无法理解或表达心中激起的那种强烈感情.

2. A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him, concludes that it must be the gateway to a world that lies beyond.
    一个年轻人看到日落，由于无法理解和表达日落在他心中唤起的激情，便得出结论：日落处想必是通往遥远世界的大门。

3. As it was extremely narrow, the man was unable to move,
    由于烟囱太窄，那人无法动弹。

4. She is unable to walk.
    她不能行走.

5. Spoiling a child also happens when parents are unable to stand up to their children's unreasonable demands.
    当家长无法顶住孩子的无理要求时，也会发生宠孩子的现象。

6. She is right-handed, and now she is unable to move her right arm and leg — they are worthless to her.
    她是个右撇子，如今却不能移动她的右胳膊右腿——对她而言，它们就没有用了。

7. But, so far, the archaeologists have been unable to discover her identity.
    不过，考古工作者至今未能确定这位女神的身份。

8. Unable to engage in many activities, my father still tried to participate in some way.
    虽说很多活动父亲都不能参加，但他还是试着通过某种方式去参与。

9. One night he drank some black coffee, contrary to his usual habit, and was unable to sleep.
    一天夜里，他一反常规，喝了些清咖啡，于是无法入睡。

10. I was unable to cope with my duties.
    我无法尽到我的职责。