But he was in the dark as to the cause, and he had no access to treatment.
但他对病因一无所知，也无法获得治疗。
| 单词 | be in the dark as to |
| 释义 |
be in the dark as to
原声例句
TED演讲（视频版） 2023年9月合集 But he was in the dark as to the cause, and he had no access to treatment. 但他对病因一无所知，也无法获得治疗。 |
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