The clauses of coherent sentence indate the event through ordering, so the order cannot be discrupted.
The common associated words are: 就、遍、又、于是、接着、然后、首先……然后/接着
（I stayed at Beijing for a few days then hurried back Shanghai.）
（First, input the coins;second, press the button.)
（He rambled into a bank, looked around, and turned out.）
* The difference between coherent sentence and coordinate sentence:
The relationship between clauses in coherent sentence is vertical inheriting; the relationship between clauses in coordinate sentence is horizontal arranging.
Therefore, the positions of clauses in coherent sentence can not be switched, while the transposition of clauses in coordinate will not influence the original meaning of the sentence.
Coherent sentence: 他坐起来，摸出香烟，点着火，开始发呆。
（He sat up, took out a cigarette, and began to stun.）
Coordinate sentence: 他一会儿站起来，一会儿又坐下去。
（He sometimes gets up and sometimes sits down.）