adj (1)笔直的，竖立的 (erect or vertical)：(plants/posts) be～(植物/杆子)笔直;an～position/freezer/piano 垂直姿势/立式冰箱/立式钢琴;an～walk/man 腰板挺直的步态/人;an～bearing/posture/stance 笔直的姿势(指风采，姿态)/姿势(指身体)/姿势(指站立时或发球前的姿势);bolt～僵直，笔直;〖同〗erect，vertical，standing-up;〖反〗horizontal;

(2)正直(诚实)的(just and honest)：an～citizen/man 正直的市民/人;～dealings公平交易;be～in business affairs 做生意规矩;An～person is one who is completely trustworthy and fair. 正直诚实的人是完全值得信赖和公正的人。〖同〗honest，honourable，moral，reliable;〖反〗dishonest，dishonourable，unreliable;

→′uprightly adv 笔直地;′uprightness n垂直，直立;

adv 笔直地(in an upright or vertical position)：hold oneself～把身板挺直;sit/stand～笔挺地坐/站着;pull the tentpole～把帐篷的中心支柱拉正;He placed the books～in the bookcase. 他把书橱里的书竖着摆好。

n (1)立柱，桩(sth standing erect or vertical)[C]：(ball) bounce off the left～of the goal(球)从球门的左边立柱反弹回来;The porch is supported by a row of～s. 一排立柱支撑着门廊。When building the fence， place the～s two metres apart. 建造篱笆的时候，把桩子按两米的间距排好。〖同〗post，pillar，column，shaft，standard，rib;stake，pole;〖反〗beam;

(2)立式钢琴(=upright piano)[C]