参议院至少有51人参加了这次弹劾审判。

At least fifty-one members of the Senate must be present during this trial.

切罗基人认为不到51岁，人是不可能完全成熟的。

The Cherokees believe a man does not reach full maturity until he is fifty-one.

有51位年轻人在演出舞台上出其不意的向自己的爱人求婚。

Fifty-one young men have taken the stage to make a surprise proposal to his sweetheart.

因为父母经常把奖励作为激励孩子的因素，他们招募了51个年龄在3到四岁的学龄前儿童。

Since parents so often use rewards as motivators for children they recruited fifty-one preschoolers aged between 3 and 4.

斯坦福大学的学生们用高速摄像机拍下了数千次抛硬币的过程，发现头朝上和字朝上的概率大约为51比49。

Students at Standford University recorded thousands of coin tosses with high-speed cameras and discovered the chances are approximately fifty-one to forty-nine.

斯坦福大学的学生用高速摄像机记录了成千上万次抛硬币的过程，发现正面朝上与正面朝下的概率大约是51%对49%。

Students at Stanford University recorded thousands of coin tosses with high-speed cameras and discovered the chances are approximately fifty-one to forty-nine.

绝经的平均年龄大约是51岁。

The average age for menopause is around 51 years old.

自2012年3月以来，我已经完成了89次旅行，其中有51次出国行。

Since March 2012, I've done 89 trips of those, 51 have been abroad.

乘电梯到51楼。

Take the elevator to the 51st floor.

答案是分享金子的51%。

The solution is to share 51 per cent of the treasure.