Can you take a stainless cane with 3 mm in diameter and drill a hole of 2 mm alongside the cane at the depth of 3 cm?
你能否用一根直径为3mm的不锈钢棒，在旁边钻出一个直径为2 mm、深度为3cm的孔？
Can you take a stainless cane with 3 mm in diameter and drill a hole of 2 mm alongside the cane at the depth of 3 cm?
你能否用一根直径为3mm的不锈钢棒，在旁边钻出一个直径为2 mm、深度为3cm的孔？
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