time of arriving at bottom
... 转换呼吸气体 switching gases 着底时间 time of arriving at bottom 着装 dressing ...
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时间通常在一月底，二月初，象征着一年辛劳后，冬春之交的休息和放松，也象征了喜庆。
It is usually a time between late January or early February, which means rest and relaxation between winter and spring after a year? S toil, and means celebration as well.
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