Business attire needs to project a professional image, and clothing that reveals too much cleavage, for women, or your back, your chest, or your midriff is not appropriate, even in a casual business setting.
商務著裝需要展現專業形象,如果女性著裝過於暴露乳溝、背部、胸部或腹部,即使是在休閒商務場合也是不合適的。