keep up to the collar 是什么意思,keep up to the collar 的翻译,解释,句子,音标,读音 - 英汉在线翻译

keep up to the collar

keep up to the collar 的中文翻译

[口]辛勤地工作；拼命地干活

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sick up
exploration survey
bowel
sowing machine
piezoelectric accelerometer
grey tropical clay
power curve
protochordate