英文释义：He must be crazy to spend money like water.

音标：[hiː ˈmʌst biː ˈkreɪzi tuː spend ˈmʌni laɪk ˈwɔtər]

用法：这句话通常用来形容一个人非常挥霍，不计后果地花钱。

例句1：She bought a brand new car even though she already has three, she must be crazy to spend money like water.

她买了一辆全新的车，尽管她已经有三辆了，她一定是疯了才会如此挥霍地花钱。

例句2：He spent all his savings on a luxury vacation, he must be crazy to spend money like water.

他把所有的积蓄都花在了一次豪华的假期上，他一定是疯了才会如此挥霍地花钱。

例句3：I can't believe he bought a diamond ring for his girlfriend, he must be crazy to spend money like water.

我简直无法相信他给女朋友买了一枚钻戒，他一定是疯了才会如此挥霍地花钱。

例句4：She keeps buying expensive designer clothes even though she can't afford it, she must be crazy to spend money like water.

尽管她支付不起，但她仍然不断购买昂贵的设计师服装，她一定是疯了才会如此挥霍地花钱。

例句5：He lost all his money in the casino, he must be crazy to spend money like water.

他在赌场输光了所有的钱，他一定是疯了才会如此挥霍地花钱。

同义词及用法：挥金如土还可以用“花钱如流水”来表达，意思相同。

编辑总结：这句话形象地描述了一个人非常大手大脚地花钱，可以用来批评或者嘲笑那些不计后果地挥霍财富的人。