downdrift

n. 往下漂流, 逐渐下降

发音

US

词形变化

downdrifts 复数 downdrifts

释义与例句

n.
  1. 1.

    A lowering (over time) of the pitch of the tones of a tonal language.

    语言学
adv.
  1. 1.

    On the downward side of a drift.

    A groyne promotes the build-up of sediment on its updrift side, and reduces erosion on the downdrift side.

词源

From down- + drift.

来源：wiktionary