HSK V7-9
Correct

低谷

/ dīgǔ /
Strokes

Definition

valley/trough (as opposed to peaks)/fig. low point/lowest ebb/nadir of one's fortunes

Example

As a Noun
low-lying valley
As a Noun
all-time low; trough; nadir; low ebb; doldrums; bottom

Related

低谷