alderKK [ˋɔldɚ] /ˈɔldɚ/发音名词1赤杨、桤木Alders grow quickly along the banks of this river.赤杨在这条河的两岸生长得很快。2赤杨木、桤木材The guitar body is made of alder, which keeps the tone warm.这把吉他的琴身是赤杨木制的,音色温暖。用这个字练口说→