(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
合同
hé tongㄏㄜˊ ㄊㄨㄥ˙
(business) contract[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]
签字
qiān zìㄑㄧㄢ ㄗˋ
to sign (a signature)[cedict]
是
shìㄕˋ
is; are; am; yes; to be[cedict]
足够
zú gòuㄗㄨˊ ㄍㄡˋ
enough; sufficient[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]