(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
一
yīㄧ
one; 1; single; a (article); as soon as; entire; whole; all; throughout[cedict]
事
shìㄕˋ
matter; thing; item; work; affair[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]
合作
hé zuòㄏㄜˊ ㄗㄨㄛˋ
to cooperate; to collaborate; to work together; cooperation[cedict]
有
yǒuㄧㄡˇ
to have; there is; there are; to exist; to be[cedict]