0 sudden and unexpected, and often unpleasant -- 突然的；意外的
1 using too few words when talking, in a way that seems rude and unfriendly -- （言語）生硬的；魯莽的；唐突的
The car juddered and came to an abrupt halt in the middle of the road.
There was an abrupt change in her attitude towards me when she heard that I was Alan's girlfriend.
The party came to rather an abrupt ending when Tom's parents came home.
There was an abrupt fall in our sales figures following the bad publicity.
As you step into the air-conditioned office, there is an abrupt change in temperature.
However, some transitions are more abrupt, and therefore usually faster.
The polar opposite situation is one in which the transition follows a more abrupt break with the authoritarian order.
The change from body tegument to nephridiopore tegument was clearly not an abrupt, but rather a gradual process (fig. 5).
