机动 jīdòng locomotive
locomotive; motorized; power-driven; adaptable; flexible (use, treatment, timing etc)
怎么记住“机动”: 机 machine + 动 move = locomotive.
汉字
用法
- Two senses: 'motorized' - 机动车 (jīdòngchē) motor vehicle; and 'flexible' - 机动处理 (jīdòng chǔlǐ) to handle flexibly.
- The 'flexible/adaptable' use covers reserve resources: 机动人员 (jīdòng rényuán) a flotating/reserve staff.
- Context tells you between 'engine-powered' and 'kept adaptable'.