The pill is the most efficient method of birth control.
避孕药是最有效的节育办法。
It's the simplest and most efficient method of practicing spoken English.
这是最简单也是最有效的口语学习方法。
It 's the simplest and most efficient method of practicing spoken English.
这是最简单也是最有效的口语学习方法。
Tests have proved that the most efficient method is to change the anode structure.
试验证明最有效的方法是改变阳极结构。
Tests have proved that the most efficient method is to change the anode structure.
试验证明最有效的方法是改变阳极结构。
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