两者完全不同. Mix with: 把东西混合起来. Oil does not mix with water. 油不能和水融合在一起 mix up: -To confuse; confound: 使弄不清：使混乱；混淆： His explanation just mixed me up more.I always mix up the twins. 他的解释令我更加糊涂了.我总是把这对双胞胎弄混 -To involve or implicate: 牵涉或牵连： He got himself mixed up with the wrong people. 他与那些坏人为伍
