fluctuate
v[I, Ipr]
~ (between A and B)
1 (of a price, number, rate, etc) rise and fall; change irregularly (指价格、 数量、 比率、 费用等)涨落, 波动
The price fluctuates between 5 and 6. 价格在5英镑与6英镑之间波动.
2 (of an attitude or a state) change continually and irregularly; waver (指态度或状态)变化不定, 动摇
fluctuating opinions 变化不定的意见.
OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where
00在这里集合,游泳之后再吃午餐。别着急!我们有足够的时间。
This combines a typewriter keyboard, a printer and a computer.