frontadadv.向前;朝前
frontn.正面;前面;前线;【气象学】锋vt.朝向;面对;对付vi.面朝;掩护adj.前面的
frontails muscle额肌瓣
front suspension前悬挂
front split ring前隔环
front-row seat前排座位
frontmost window最前面的窗口
front plant area厂前区
front sight ring准星护圈
front axle pivot前桥支枢
Front-traction前屈牵引
front connection前面接线,正面连接