the first ten days of a month
... in an instant; in a twinkle--霎时间 the first ten days of a month--上旬 late at night--深更半夜 ...
beginning of a month
beginners all-purpose symbolic instruction code BASIC语言 beginning of a month 上旬 beginning of astronomical morning twilight 天文晨光始 ..
first third of a month
... 冲突 to conflict 上旬 first third of a month 中旬 middle third of a month ...
la unua tagdeko de monato
... 月初上旬 beginning of month 上旬: la unua tagdeko de monato 四月上旬 In Early April ...
上旬是指一个月的第一个十天。旬是中国一种传统的时间单位。十天为一旬。