| 单词 | opt in |
| 释义 | opt in opt in — phrasal verb with opt /ɒpt/ aep /ɑːpt/ verb [I] ► F0 to choose to be part of an activity, arrangement, etc.: » Company policy is to leave new workers out of the pension scheme, unless they choose to opt in.Thesaurus+: ↑Taking and choosing |
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