常見例句He has drawn some lake-green duckweeds, which look quite natural.他畫了一些湖綠色的浮萍，看起來(lái)很自然。Plants like duckweeds float on the surface of still and slowmoving waters, while those with roots and flexible stems can stand in swiftflowing streams.從漂浮在靜止或者緩慢流動(dòng)的水麪上的浮萍，到位於激之流中的長(zhǎng)著根和柔軟莖的植物。 返回 duckweeds