“十三？”他胡乱猜道。
"Thirteen?" he guessed wildly.
她曾十三年未被战胜过。
She was undefeated for 13 years.
他十三岁时离家出走。
He ran away from home at the age of thirteen.
她出生一个月时受洗礼，十三岁时受坚信礼。
She was baptized when she was a month old and confirmed when she was thirteen.
以前至少有十三次尝试独立到达南极的努力。
There have been at least thirteen previous attempts to reach the North Pole unaided.