incoherence

1.the incoherence of speech

语无伦次

2.the bad old days of incoherence and irresponsibility.

过去那些松散、不负责任的糟糕日子。

3.2) most grammatical errors were errors of performance, while content errors mainly occurred as results of negative L1 transfer, incoherence and incohesion;

2）学生所犯的大部分语法误都属不系统的行为误，而非能力误。口语误产生的原因主要有负面的母语迁移、衔接和问题；