To adhere the each side of the frame with the white mucus to form a integrated picture frame, and fasten the frame with elastic line rounded outlined.
组装工人用白胶把边框两端粘合形成一个完整的相框，并用橡皮筋固定边框。
To adhere the each side of the frame with the white mucus to form a integrated picture frame, and fasten the frame with elastic line rounded outlined.
组装工人用白胶把边框两端粘合形成一个完整的相框，并用橡皮筋固定边框。
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