请问关于 IA 的装着"Attire during internship: Please be dressed in comfortable working attire. Jeans, sneakers and sandals are not allowed. Ties are not necessary for gentlemen.” 具体指的是不是就是 衬衣，西裤加皮鞋？(i'm male) 另外，衬衣是穿短袖好，还是长袖比较得体？ 谢谢答疑