In six months of using SuperMemo, I had to restore from a full backup three times, each time losing six to eight hours of work.

在六个月的使用期类，我做过三次完整恢复，每一次恢复都让我损失六到八个小时的工作。

youdao

Although it's effective, this rigid process requires three to six participants and hours of painful meetings paging through code printouts in exquisite detail.

尽管它很有效，但是严格的过程需要三到六个参与者，并进行一系列繁琐的会议以讨论具体的细节。

youdao

I finished the testimony at about six-thirty, three and a half hours before I was scheduled to address the nation.

约6点半，我的作证结束了。按计划，三个半小时后我就得向全国发表电视讲话。

youdao

We practice six days a week, usually, you know, three to four hours a day,

通常我们每周练习六天，你知道，每天三到四个小时，

赛艇项目很流行 - SpeakingMax英语口语达人

Then let it cook from three to six hours until the meat is so tender it falls off the bone and the sauce turns a deep, rich red.

NPR: Savoring Memories of Sunday Dinner

Two lithium-ion batteries power the device (four are included), each of which will go for three to six hours after charging for an hour or so, allowing continuous use of the suit by facilities.

ENGADGET

"I probably play every day, two to three hours, six days a week, " he says.

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