by leaps and bounds
<abbr style="text-decoration: underline;" title="by / in" > by</abbr>
bi
leaps
li:ps
lips
and
ənd
ēnd
bounds
baʊndz
bawndz

英語での「 by leaps and bounds」の定義と意味

by leaps and bounds
01

with very high speed 

(by|in) leaps and bounds definition and meaning
慣用句
くだけた
Her confidence grew by leaps and bounds after the first few classes. 
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