<prompt> Translate the following text to EnglishHangeweza kutarajia kudumisha sehemu yake kwa muda usiojulikana; mapema au baadaye alikuwa karibu amefungwa kujisaliti mwenyewe, na kisha angekuwa ametupa nafasi muhimu katika upumbavu tu.  <response>: He could not hope to sustain his part indefinitely; sooner or later he was almost bound to betray himself, and then he would have thrown away a vital chance in mere foolhardiness. 