每四年，我们都会把所有多余的时间额外凑成一天。
Every four years, we put all that time together into an extra (额外的) day.
我们每三到四天查看一次培养物，并通过添加捐献者的淋巴细胞使感染病毒的细胞存活了三周。
We checked the culture every three to four days and managed to keep the virus-infected cells alive for three weeks by adding lymphocytes from donors.
我度过了多相睡眠的第一天，严格按照每四小时小睡20到30分钟的时间表。
I've completed my first day on the polyphasic sleep schedule, napping for 20-30 minutes every four hours.
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