- 對內(nèi)開放和對外開放
- open: adj. 1.開著的，開放的；可進入的，可分享的 (to ...
- open up internally and externally: 對內(nèi)對外開放
- open up both internally and externally: 對內(nèi)對外開放
- externally-internally related channels: 表里經(jīng)
- square internally and round externally: 內(nèi)方外圓
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