n. the front of the human head from the forehead to the chin and ear to ear
n. the general outward appearance of something
n. the striking or working surface of an implement
n. a part of a person that is used to refer to a person
n. 脸, 面容, 正面, 外观
vt. 面对, 朝, 正视, 面临
vi. 朝, 向
[计] 现场可改变的控制元件