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at which等於什麼

"at which" 可以根據上下文有不同的含義,但主要有兩種解釋:

引導非限制性定語從句:在這種情況下,"at which"相當於"where",用於指代地點。例如,在句子"I found my keys at which point I realized I had left them at home"中,"at which point"指的是在那個時刻(即發現鑰匙的那一刻)我意識到我把鑰匙落在家裡了。

表示時間點:在某些情況下,"at which"可以理解為"when"或"while",用來指代時間點。例如,在敘述中,"Lord Steyne swore again, at which becky held her head down and began to cry"中,"at which"相當於"when",指的是在那個時刻(即Lord Steyne再次咒罵時),Becky低頭哭泣。

綜上所述,"at which"既可以用來指代地點,也可以用來指代時間點,具體含義需要根據上下文來判斷。