to advance dauntlessly in wave upon wave (idiom)
前 · 9 strokes
Phonosemantic compound. 歬 represents the sound, and 刂 represents the meaning. Based on the original meaning "cut", now written as 剪. The current meaning "in front" is a phonetic loan.
赴 · 9 strokes
Phonosemantic compound. 走 represents the meaning and 卜 represents the sound.
后 · 6 strokes
Depicts a queen mother (母) giving birth to her heir (𠫓). Based on the original meaning "heir to the throne". The meaning later expanded to "ruler", "successor", and "after".
继 · 10 strokes
Simplified form of 繼. Originally written as 㡭, which depicts a continuous series of silk threads (丝) joined together. The 纟 (silk) component was later added to clarify the meaning.
一代代科学家前赴后继,为科学献身。
to advance dauntlessly in wave upon wave (idiom)