tenths of an inch into the timber」,形容書法筆力剛勁有力(written in a forceful hand),也比喻對文章或事物見解深刻、透徹,可以用「penetrating;profound」表示。
例句:
他的分析真是入木三分。
His analysis was really penetrating.
這個真實的故事把兩個年輕人的冷酷殘忍刻畫得入木三分。
The cold, hard cruelty of two young men is vividly brought to life in this true story.
這位書法家的字蒼勁有力,入木三分。
This calligrapher writes a forceful hand, with bold and vigorous strokes.