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1·They did not sport beards or balaclavas and wore sunglasses only because we were sitting outside.

他们没有留胡子或者戴面罩，戴的墨镜也只是因为我们坐在户外。

2·Two construction workers emerge from behind a sheet of aluminium siding, their faces concealed beneath balaclavas.

两名建筑工人从一片铝线后面浮现，他们的脸隐藏在头套后面。