1. What is your approximate monthly family income? 你每月的家庭总收入大约是…?
2. The dates are approximate guesses and are subject to change at any time. 此发放日期只是粗略估计而已，而且是可以随时变更的。
3. Point that we not only find the approximate solution by using the perturbation method, but also can find the precise solution. 认为电场中带电谐振子用定态微扰的方法不仅可以求近似解，也可找到其精确解。
英英解释
v.
1. be close or similar
2. judge tentatively or form an estimate of (quantities or time) adj.
1. not quite exact or correct
2. very close in resemblance
3. located close together
