1. 变幻莫测(尤指观点,计划等)：hale and hearty 老当益壮 | chop and change 变幻莫测(尤指观点,计划等) | fair and foul 在任何情况下
2. 变化无常：choose method 选择法 | chop and change 变化无常 | chopper 断续器
3. 千变万化：as sure as mud;as sure as eggs is eggs的的确确 | chop and change;kaleidoscopic,protean,everchanging;versatile:千变万化 | bamboozle everybody:东骗西拐
4. 变化无常, 摇摆不定：chop about 乱砍(树木等) (风)突变方向, 突变 变化 | chop and change 变化无常, 摇摆不定 | chop at 向...砍去, 打