[文法] 兩個動詞之前+not

[zzss2003 (brotherD)]

原文:
Following is a description of the various SMBus protocols with and without a
Packet Error Code. Compliant devices need not support all the protocols
defined in this section. The results returned by such a device to a protocol
it does not support are undefined.

盲點一:need not support

盲點二:The results returened by such a device to a protocol(到這裡都懂)it
does not support are undefined

為啥protocol可以直接it it指的是什麼? device嗎?

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推 naushtogo: need not support = don't need to support
→ naushtogo: 聽過有人叫它半助動詞，因為你可以這樣用：
→ naushtogo: Q: Need we ... ?
→ naushtogo: A: No, we needn't.
→ dnuolc: it代表compliant devices
→ dnuolc: 下面的描述包含數種SMBus協定，部份有定義封包錯誤碼，
→ dnuolc: 部份則無特別定義。通用SMBus相容裝置不需支援所有種類
→ dnuolc: 的協定，差別只在於遇到錯誤時，程式回應的資訊是否有被
→ dnuolc: 定義