例句與造句

1. Layer 2 frame header and trailer are removed and replaced at every layer 3 device
   層2個(gè)體格首領(lǐng)和追蹤者在每個(gè)層3裝置被移動(dòng)而且替換。
2. It's difficult to find frame header in a sentence. 用frame header造句挺難的