opt-in

US

UK

C1 高級
v.t./i.動詞 (及物/不及物)選擇加入;明確同意
Users must actively opt-in to receive marketing emails.
n.名詞選擇加入;明確同意
The company requires a clear opt-in before collecting user data.
adj.形容詞選擇加入的;明確同意的
The company uses an opt-in email list to ensure compliance with privacy regulations.

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