unstable

adj. /ənˈsteɪbəl/ B2

不稳定的；动摇的

Not firm or steady; likely to shake or fall.

仙境例句

The table was unstable; whenever Alice touched it, one leg moved and the cups shook.

桌子不稳，爱丽丝一碰，一条桌腿就晃，杯子也跟着抖。