Four-character idioms with good words as the mystery

1. riddle riddle: an arrow hits the heart: must riddle: hit the nail on the head: plate riddle: hit a sentence with joy: ambition riddle: hit a sentence with joy: acoustic riddle: hit a sentence with a clear conscience: ghost riddle: hit a sentence with angry words: ah riddle: make a clean break. Look and play a word riddle: riddle: laugh and play a theme riddle: music riddle: no three no four play a mathematical term riddle: pi riddle: golden cicada takes off its shell to play a noun riddle: glass riddle: fire and water are compatible to play a word riddle: light riddle: fire burns us, play a phenomenon riddle: spontaneous combustion riddle: play a word riddle: Ka Guangming play an astronomical phenomenon riddle: meteorite shower riddle: one word riddle: Westbank > Crayon Xiao Xin riddle: White riddle: Play a noun riddle behind you: Pillow riddle: Near Zhu Zhechi, the riddle of the word "black beat": Infection riddle: No matter how clever a person is, he is stupid to play a Chinese medicine riddle: Akebia riddle: play a medical term riddle: eye disease riddle: be indignant to play a medical term riddle: pneumothorax riddle: play a radical riddle with twists and turns.