大多数国家使用公制作为测量标准。

Most countries use the ___metric system as their standard of measurement.

网页加载速度是衡量用户体验的重要指标。

Page load speed is an important ___metric for measuring user experience.

这首诗采用了传统的五步抑扬格韵律。

This poem follows a traditional five-foot ___metric scheme.