因为裤子的后片总是比前片大一点.Because back piece of trousers are a little large than front piece.在将后片 、 前片及袖片与其他衣片缝合之前,先加工它们省道.Process the darks, fronts and sleeves before joining one section to other sections.在将门襟(挂面)与前片缝合之前,用机器剪门襟边....

“前片”的拼音为：qián piàn...

“前片”的英语可以翻译为：anter ...