(续上)相隔不足四掌的,不必另拿一根 横梁;相隔四掌的,就须另拿一根。
-
若相隔不足四掌,人就不必另拿一根 横梁 来。
If there is a gap of less than four handbreadths, one need not bring another cross beam.
-
然而若相隔四掌,人就必须另拿一根 横梁 来。
However, if there is a gap of four handbreadths, one must bring another cross beam.