English version

$64,000 question, the

From Longman Dictionary of Contemporary English$64,000 question, thethe $64,000 question$64,000 ques·tion, the /ˌsɪkstifɔː ˌθaʊzənd ˌdɒlə ˈkwestʃən $ -fɔːr-, -ˌdɑːlər-/ noun  the most important thing that people want to know about something The $64,000 question is whether or not the rocket will take off safely.
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