破 ㄆㄛ ˋ pò 竹 ㄓㄨ ˊ zhú 建 ㄐㄧㄢ ˋ jiàn 瓴 ㄌㄧㄥ ˊ líng lit. smash bamboo, overturn water tank (idiom); fig. irresistible force