unable
adj. /ʌnˈeɪbl/ B1
无法；不能的
Not able to do something.
仙境例句
Poor Alice was unable to remember her lessons: four times five came out as twelve!
可怜的爱丽丝怎么也记不起学过的功课：四乘五竟然等于十二！
原著这一句
Alice looked at the jury-box, and saw that, in her haste, she had put the Lizard in head downwards, and the poor little thing was waving its tail about in a melancholy way, being quite unable to move.
爱丽丝朝陪审席看去，发现自己匆忙中把蜥蜴头朝下倒着放了进去，那可怜的小东西完全动弹不得，只能忧伤地晃着尾巴。
卡罗尔原著 · 第 12 章