And most frogs don't possess an effective instrument to do that, like the fangs on a snake.

而大多数青蛙都没有像蛇的尖牙一样有效的工具来做到这一点。

Building energy codes, standards and labeling for appliances and equipment, as well as buildings, are among the most effective instruments at our disposal — if they're enforced well and together with other supporting mechanisms.

为电器和设备制定能源法规、标准和标签，同样也适用于建筑物，这就是我们手边最有效的工具之一，前提是高效地推行了这样的举措，再配合上其他机制的支持。