逻辑关系原则 1、转折 but, however, in fact, actually, while, nevertheless, nonetheless, as a matter of fact, (un) luckily, (un) fortunately 2、递进 also, besides, except, in addition, additionally, whats more, furthermore, moreover 3、因果 as, so, since, therefore, thereby, because, factor, reason, hence, As a result, The reason why, Thats why, Thanks to, Due to, given to, A lead to B, A contribute to B
