总统的任期不得超过两届，每届四年。

The presidential mandate is limited to two terms of four years each.

宪法的一项修订条款规定任何总统不得连任两届以上。

A constitutional amendment precludes any president from serving more than two terms.

沃特罗特已经在两届世界杯比赛中担任过裁判。

Vautrot has refereed in two World Cups.