certain (EN)

形容词，限定词，代词

形容词 “certain”

1. 确定 (对某事完全自信或确信；毫无疑问)
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   She was certain that she had locked the door before she left.
2. 确定（明确的或确定无疑的；确立无疑的）
   The evidence makes it certain that he committed the crime.
3. 某种程度的 (适度的；不完全的)
   We know to a certain extent how this new technology works.
4. 必然的
   If you go there, you'll face certain death.

限定词 “certain”

1. 某 (特定但未具体命名或描述)
   She has a certain charm that is hard to define.
2. 某（指仅知道名字的特定人）
   A certain Mr. Smith asked me if he could make an appointment.

代词 “certain”

1. 某些（已知群体中的）
   Certain of the students were selected for the exchange program.