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1·That said, new taxes are a tough sell in Washington, which helps explain the current preference for a cap-and-trade scheme.

但是新的税收很难在华盛顿通过，这有助于解释为什么目前人们倾向于限额和交易计划。

2·At Shell, our preference is for cap-and-trade systems that place a cap on the overall level of emissions permitted.

在壳牌，我们倾向于上限和交易(cap - and - trade)系统来为总的排放水平确定一个上限。

3·In a market with a strong bias in one direction or just after a clear supply or demand indication, a trade in only one direction is taken. This is called an Opening Range Breakout Preference (ORBP).

当市场有强烈的方向，且方向明确后，供求关系已经明显，那么顺着这个方向交易是唯一的选择。