This year, the world’s timekeepers will add its 24th leap second since 1972.

今年，全世界的计时员将自1972年以来第二十四次增加闰秒。

This year, the world's timekeepers will add its 24th leap second since 1972.

今年，全世界的计时员将自1972年以来第二十四次增加闰秒。

The Maya, the world's greatest timekeepers ever, say it's all going to stop on December 21, 2012.

马雅人，世界上最大的时钟都表示，这一切都将停止12月21日， 2012年。

OMEGA's official timekeepers ensure timely delivery of the official results to everyone involved in the competitions they support.

欧米茄的官方计时员身份使其可以确保向赛事各相关方及时提供正式赛果。

The Mayans, who were good-enough astronomers and timekeepers to predict Venus's position 500 years in the future, deserve better than this.

玛雅人在天文学和记录时间方面足够出色。他们在那个年代就预言了500年后金星的位置。然而值得称颂的还不仅仅于此。

Thee Mayans, who were good-enough astronomers and timekeepers to predict Venus's position 500 years in the future, deserve better than this.

玛雅人在天文学和记录时间方面足够出色。他们在那个年代就预言了500年后金星的位置。而值得称颂的还不仅于此。 。

The Mayans, who were good-enough astronomers and timekeepers to predict Venus"s position 500 years in the future, deserve better than this."

玛雅人在天文学和记录时间方面足够出色。他们在那个年代就预言了500年后金星的位置。而值得称颂的还不仅于此。

Site Supervision and Staff including timekeepers and clerks, Site offices. Foremen and Chargehands will only be paid if they are skilled working;

现场监理与员工包括计时员和办事员、现场办公室。工头和工长只有当他们工作熟练时才付费。（不好理解）