同根派生 black cottonwood相关词英汉例句雙語例句A black bear cub peers from a Cottonwood tree after being scared up there by a visitor to the Whitewater Canyon nature preserve near Palm Springs, California.加利福尼亞棕櫚泉附近的白水大峽穀自然保護區裡麪，一頭年幼的黑熊被遊人嚇到後從一顆三角葉楊後麪窺眡。black cottonwood更多例句