Tendency倾向，趋势，倾向性
如下：
Have a tendency to 有…的倾向
There be a tendency to 有…趋势
Tendency to something趋向，趋于
Development tendency发展趋势
Unhealthy tendency不正之风
Natural tendency自然趋势
Upward tendency上涨的趋势
Bleeding tendency出血倾向
Central tendency集中趋势
There is a growing tendency among employers to hire casual staff.雇主雇佣临时职员有增加的趋势。
