1. 处于低潮;陷于停滞
If an activity or situation is in the doldrums, it is very quiet and nothing new or exciting is happening.

1. a belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific

2. a state of inactivity (in business or art etc)

e.g. economic growth of less than 1% per year is considered to be economic stagnation

Synonym: stagnationstagnancy