Bảo vệ nhà cửa và đồng ruộng bằng đường
Cập nhật: 07:24 11/06/2009 GMT+7
Đường có thể trở thành vũ khí lợi hại trong việc ngăn chặn sự phá hoại công trình xây dựng và mùa màng của côn trùng có hại.
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