[intransitive] (about a share price, figure, etc.) to change slowly, especially to a lower level and in a way that does not seem to be controlled
（股票价格、数字等）略微下浮◆The Nikkei average drifted lower yesterday.
日经平均指数昨天略微下浮。◆Inflation rates have drifted below 2 per cent.
通货膨胀率略降至 2% 以下。⨁to drift higher / lower
上／下浮 ⨁ to drift above / below sth
浮动到某数字之上／之下 ⨁ to drift down / up (by sth)
下／上浮（某数字）