1.opt for选择
So the real dilemma lies not in what handset you choose, but which network you opt for.
所以真正的困境不在于你选择什么手机，而在于你选择什么网络3qBa)@wmm)S;。
2.cut down on减少
But using renewable energy to power electric vehicles will cut down on the carbon emissions created in the process.
但使用可再生能源为电动汽车提供动力，将减少汽车行驶过程中产生的碳排放4[c,aZIv~P9q2u[L,9。
3.the equivalent of相当于
For all of that, even with extra pay for overtime, he earned the equivalent of $1 an hour.
虽然加班有额外的加班费，马向前挣的钱也只相当于1美元一小时pJYesbBP20M!dD-b。

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