幼虫的最佳抽样方法为棋盘式。
此峰的蓝色和白色耐克与棋盘式花边发送给我的dalyte1。
This PIC of blue and white Nikes with Checkerboard Lacing was sent to me by dalyte1.
还有石匠用窑烧砖在东西和南北向的棋盘式街道边,建造多层的楼房。
Masons employed kiln-fired brick to build multistory houses that were placed along north-south and east-west street grids.
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