骨瘦如柴意思

「骨瘦如柴」這個成語形容的是一個人非常瘦，幾乎只剩下骨頭，沒有多少肉。這個成語通常用來形容人的外貌，尤其是形容那些因為疾病、營養不良、過度減肥或者其他原因導致身體極度消瘦的人。

這個成語的用法可以是中性的，也可以是帶有同情或者批評的意味，depending on the context and the speaker's intention. For example:

• 中性用法："He survived the famine, but now he's just skin and bones, bone-thin."
• 同情用法："The old man was so frail, his bones showed through his paper-thin skin."
• 批評用法："She's obsessed with being thin; she's let herself get so skinny, she's practically a skeleton."

這個成語的英文翻譯可以是 "emaciated", "skeletal", or "skin and bones".