不成熟的用法和樣例：
例句
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無經驗的、不成熟的或未經試驗的
Inexperienced, immature, or untried. -
不成熟的未熟或成熟的；不成熟的
Not ripe or matured; immature. -
就他的年齡來說，他還很不成熟。
He's very immature for his age. -
他裝作老於世故，而實際上卻很不成熟。
He pretends he's been around but he's really very immature.
