了如指掌
liǎo​rú​zhǐ​zhǎng

know thoroughly

  • created sense approved 了如指掌 · liǎo​rú​zhǐ​zhǎng · know thoroughly

    了如指掌

    liǎo​rú​zhǐ​zhǎng

    know thoroughly

    to know something or someone extremely well; to be intimately familiar with something, as if looking at one's own palm

    他对这里的地形了如指掌。

    idiom

    created sense

  • created reference approved 了如指掌/瞭如指掌 → 了如指掌 (variant)

    了如指掌 / 瞭如指掌 liǎo​rú​zhǐ​zhǎng

    了如指掌 liǎo​rú​zhǐ​zhǎng

    variant

    created reference