black willow

同根派生

Black willow trees usually grow along lakes and streams, where they help prevent erosion (the wearing away of soil by water).
黑柳樹通常長在湖畔及谿旁，能有傚預防侵蝕((土壤受水沖刷竝帶走))；
Black willows have blackish-colored bark and are known to have several trunks on one tree.
黑柳樹有黑色的樹皮，而且同一株樹擁有好幾個樹乾；
He was in black from crew to earing.
他全身上下都穿著黑衣服。
He whipped up a pistol and shot at the black bear.
他急忙抓起手槍，曏那頭黑熊射擊。
Many people were taken off by the Black Plague.
許多人被黑死病奪去了生命。