occurring days of sandstorm 宁夏沙尘暴
sand-dust storm occurring days 沙尘暴发生日数
Death from any obstetric cause occurring more than 42 days but less than 1 year after delivery 任何产科原因的死亡,发生于分娩后42天以上至一年以内
Half the cases have been reported in the past ten days, with the first case occurring in early October.
第一例发生在10月初，有一半病例是过去10天报告的。
The report focuses on kids and teens, for obvious reasons-and because hearing loss is occurring at younger ages these days, thanks to noise exposure.
由于显而易见的原因—在噪声环境中，少年儿童的听力易受损害—本报告重点针对儿童和青少年。
The hottest and coldest days of the years now are occurring almost two days earlier.
一年里最热和最冷的日子已经提早了2天。
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