“倍日并行”是成语

倍日并行bèi rì bìng xíng

日夜赶路。

出处《史记·孙子吴起列传》：“乃弃其步军，与其轻锐倍日并行逐之。”

“倍日并行”的分词：在阅读器中打开 →

倍HSK 4

1.(two, three etc) -fold2.times (multiplier)3.double4.to increase or multiply+1 条

日HSK 1

1.(bound form) sun2.day3.day of the month4.(bound form) Japan (abbr. for 日本[rì běn])+1 条 +2 条

并行並行HSK 7–9

1.to proceed in parallel2.side by side (of two processes, developments, thoughts etc)