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    Chinese Grammar

    Expressing aging or deterioration with 老化 (lǎohuà)

    Aspect & Tense
    Description & Modification

    Structure

    Subject + 已经 + 老化

    Explanation

    老化 (lǎohuà) is a verb meaning "to age," "to deteriorate," or "to become worn." It describes the process by which materials, structures, or biological organisms degrade over time. It is frequently used with 已经 to indicate that aging has already occurred.

    Examples

    • 这栋楼的外墙已经严重老化了。

      Zhè dòng lóu de wàiqiáng yǐjīng yánzhòng lǎohuà le.

      The exterior walls of this building have severely deteriorated.

    • 皮肤老化是自然现象，不用太担心。

      Pífū lǎohuà shì zìrán xiànxiàng, bùyòng tài dānxīn.

      Skin aging is a natural phenomenon; there's no need to worry too much.

    • 这些水管已经老化，必须尽快更换。

      Zhèxiē shuǐguǎn yǐjīng lǎohuà, bìxū jǐnkuài gēnghuàn.

      These water pipes have deteriorated and must be replaced as soon as possible.

    Expressing aging or deterioration with 老化 (lǎohuà) | Chinese Grammar