Used to fill a pause when hesitating in speech.

• A mild placeholder showing uncertainty or searching for words.

表示说话时犹豫的语气词。

• 用于停顿、寻找措辞的填充音。

To say 'er' while hesitating.

• To fill pauses with 'er'.

在犹豫时说“呃”。

• 用“呃”来填补停顿。

An instance of the interjection 'er'.

• A hesitation marker in speech.

一次“呃”的发声。

• 表示犹豫的语音标记。

English initialism for: earned run; endoplasmic reticulum; entity-relationship; emergency room; estrogen receptor; Einstein–Rosen bridge; enhanced radiation.

• Context-dependent technical abbreviation.

英语缩写“ER”，可指：earned run; endoplasmic reticulum; entity-relationship; emergency room; estrogen receptor; Einstein–Rosen bridge; enhanced radiation。

• 依语境而定的技术缩写。