(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
或者
huò zhěㄏㄨㄛˋ ㄓㄜˇ
or; possibly; maybe; perhaps[cedict]
飞机
fēi jīㄈㄟ ㄐㄧ
airplane[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]