(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
理论
lǐ lùnㄌㄧˇ ㄌㄨㄣˋ
theory[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]
假设
jiǎ shèㄐㄧㄚˇ ㄕㄜˋ
suppose that...; hypothesis; conjecture[cedict]
你
nǐㄋㄧˇ
you[cedict]
想
xiǎngㄒㄧㄤˇ
to think; to believe; to suppose; to wish; to want; to miss[cedict]