英语翻译兹证明XXX,性别女,出生日期XXX,于X年X月X日至X年X月X日在XXX担任设计工作,在此期间表现优异、工作出

1、This is to certify that XXX(Female,Born in XXX) once worked as a designer in XXX from X年X月X日 to X年X月X日.She took an outstanding performance and got an excellent achievement here and won the appreciation and recognition from the colleagues and leaders.
Proof is hereby given(可要可不要)
2、This is to certify that XXX(Female,Born in XXX)once worked as a saleswoman in XXX from X 年X月X日 to X年X月X日.She charged the sale of the world-class brandfashion,jewelry and wrist watch.She behaved well and skilled in her business and familar with the associated knowledges about selling products.Also she always offerd the cusomers warm and thoughtful services and contributed a lot for raising our business volume.She was regarded as our mainstay empolyee.
年月日你自己填上吧,其余的都是正式书面用语,不必改动.公司那里注意一下,大的用IN,小的用at,或者统一用in也行,不过不太正式.