n. (mathematics) an unbounded two-dimensional shape
n. a level of existence or development
n. a power tool for smoothing or shaping wood
n. a carpenter's hand tool with an adjustable blade for smoothing or shaping wood
n. 平面, 扁平物, 机翼, 飞机, 水准, 地位
a. 平的, 平面的
vt. 将...刨平, 刨平, 掠过水面
vi. 翱翔, 乘飞机旅行, 刨掉