Something happens, in millions of humans each year, which changes a negative evaluation into a positive evaluation, like flipping a light switch.
这种情况在大多数人身上都会经常发生，其后果是导致原先的负面评价转变成为正面评价，就像电灯开关从一头跳到另一头。
Think in clean language, and switch negative thoughts into positive solutions.
用文雅的语言来想问题，变消极的思想包袱为积极的解决方案。
Electrical life: 50000primary Characteristic: it is stepless speed regulation of cross current switch, which have self-lock and positive and negative device.
电器寿命：50000主要特征：交流无级调速开关，具自锁和正反装置。
Electrical life: 50000primary Characteristic: it is stepless speed regulation of cross current switch, which have self-lock and positive and negative device.
电器寿命：50000主要特征：交流无级调速开关，具自锁和正反装置。
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