Due to poor fitting, three ball bearings for the two motors were damaged because water seeped in and caused serious corrosion to the bearings.

由于安装质量差，两台电动机的三个滚珠轴承已损坏，这是由于渗水而引起轴承的严重腐蚀造成的。

youdao

What you need to do is to kick a ball into each of the three green balloons.

你需要做的是把一个球踢进三个绿色的气球里。

youdao

As of March,about fifty of the eighteen thousand students at Ball State were taking part in the Degree in Three program.

VOA: special.2009.07.23

He has a little ball. A little two- or three-year-old kid has a ball.

他有一个小球，一个两或三岁的孩子有一个球。

耶鲁公开课 - 1945年后的美国小说课程节选

There are three ways, the goal--the attacker could kick the ball.

罚球队员可以选择三种不同射门路径

耶鲁公开课 - 博弈论课程节选

In the case of the Yankees, there are three ball players whose value to the franchise and the open market could be adversely affected if their disappointing postseason performances to date continue.

FORBES: Connect

However, Piniella did lead three different ball clubs to the playoffs on seven different occasions.

FORBES: A Fond Farewell To The Golden Age Of Managers

McIlroy was out in a three-ball with team-mates Llewellyn Matthews and Jamie Moul in Tuesday morning's practice at RCD.

BBC: McIlroy magnetism