up here, down there (idiom); to rise and fall in succession; no sooner
此 · 6 strokes
Origin unclear. Two possible explanations are (1) depicts a person (人) stopping (止), meaning "here", and (2) depicts a foot (止) kicking a person (人), based on an earlier meaning "to kick" (跐).
起 · 10 strokes
Phonosemantic compound. 走 represents the meaning and 己 represents the sound.
彼 · 8 strokes
Phonosemantic compound. 彳 represents the meaning and 皮 represents the sound.
伏 · 6 strokes
Depicts a person (亻) lying down next to a dog (犬). The meaning later shifted to "crouch".
演唱会现场观众的欢呼声此起彼伏,气氛非常热烈。
The cheers from the audience at the concert rose and fell in waves, creating an incredibly lively atmosphere.