辞書 ポーランド語 - 英語
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mieć zaległości w szkole 英語で:
1. 
to fall behind in school
2. 
fall behind with school work
英語 "という言葉mieć zaległości w szkole"（fall behind with school work）集合で発生します。
angielski 4.10 str 503. 
fall behind
fall behind schedule and then catch up
we should not fall behind
In order not to fall behind China or India, we need immediate change.
Companies that choose not to do this will fall behind those that are dedicated to improvement and excellence.
Don't fall behind, let's walk together.
fall behind the rent
