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请下了订单之后立即与我们联系，以便我们追踪你的订单
Please contact us after you placed order, that'll be convenience for us to track your order.

Please contact us once your order is placed in order to let us track your order.

please contact me as soon as you have made the order, so that we can follow your order.

Please contact us immediately when you sign the order form for our tracking of it.

Please contact us right after you place your order, so that we can follow up.