副詞 undoubtedly:

1. with certainty
   同義詞：doubtless, beyond question, without doubt, beyond any doubt

1. That's undoubtedly wrong.
   那的確是錯了。
2. His teachers told him to pull his socks up, or he'd undoubtedly fail his exam.
   老師要他加把勁兒，不然考試準(zhǔn)不及格。
3. That sort of thing, though it undoubtedly descends to the level of "man bites dog" journalism, is perhaps unavoidable nowadays.
   盡管那種東西毫無疑問已降格為諸如“人咬狗”之類的新聞寫作，但在如今卻是無法避免的。