1. 垂直的；挺直的；直挺挺的
    If you are sitting or standing upright, you are sitting or standing with your back straight, rather than bending or lying down.

    e.g. Helen sat upright in her chair...
           海伦笔直地坐在椅子上。
    e.g. ...those who had managed to remain upright...
           那些尽力保持腰背挺直的人

2. （吸尘器、冰箱等）竖式的，立式的
    An upright vacuum cleaner or freezer is tall rather than wide.

    e.g. ...the latest state-of-the-art upright vacuum cleaners.
           最新款、最先进的立式吸尘器

3. （椅子）直靠背的，没有扶手的
    An upright chair has a straight back and no arms.

upright是什么意思

    e.g. He was sitting on an upright chair beside his bed, reading.
           他正坐在床前一张直背椅上看书。

4. 立柱；立放构件
    You can refer to vertical posts or the vertical parts of an object as uprights .

    e.g. ...the uprights of a four-poster bed.
           四柱床的立柱

5. 诚实的，正直的；规矩的
    You can describe people as upright when they are careful to follow acceptable rules of behaviour and behave in a moral way.

    e.g. ...a very upright, trustworthy man.
           一个非常正直可靠的人