中文拼音： ban4 ping2 shui3 xiang3 ding1 dang1

中文繁体： 半瓶水響叮噹

英文翻译： lit. if you tap a half-empty bottle it makes a sound (idiom)/fig. empty vessels make the most noise/one who has a little knowledge likes to show off, but one who is truly knowledgeable is modest