重点词汇
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出口
export; exit; exportation; outlet; vent; egress; way out; exitus
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入口
entrance; inlet; gateway; portal; mouth; import; entryway; way; access; orifice; ingress; enter; come in; go in; get in
Export and import
出口
export; exit; exportation; outlet; vent; egress; way out; exitus
入口
entrance; inlet; gateway; portal; mouth; import; entryway; way; access; orifice; ingress; enter; come in; go in; get in