any of numerous Old World and American oaks having 6 to 8 stamens in each floret, acorns that mature in one year and leaf veins that never extend beyond the margin of the leaf
双语例句
用作名词 (n.)
The wallboard comes in both white oak and yellow pine. 墙板分两类，一种是白栎木，另一种是黄松。
The wallboard comes in both white oak and yellow pine. 墙板分两类，一种是白栎木，另一种是黄松。
