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New HSK word(s):
5 Old HSK word(s): B VS 透* → tou4 penetrate/ transparent/ thorough B VA 漏* → lou4 leak D VA 渗* → shen4 seep D VA 渗透* → shen4tou4 infiltrate D 通风* → tong1 feng1 ventilate/ tip-off

通风

Grade E word(s):



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