Firstly we should boil the well-chosen single-chamber cocoon with high temperature.
Firstly we should boil the well-chosen single-chamber cocoon with high temperature.
首先我们应该在高温蒸煮中精心挑最佳品质的茧。
Firstly we should boil the well-chosen single-chamber cocoon with high temperature.
首先我们应该在高温蒸煮中精心挑最佳品质的茧。