Um-hum
呣
?? 詞語組成解析
um
[[?m]]
int. 嗯（表示遲疑）
hum
[h?m]
vt. 哼唱;
vi. 忙碌，活躍;發嗡嗡聲;發出嘈雜聲;
n. 嗡嗡聲;雜音;哼唱的動作;
int. 哼;嗯;
??? 情景例句
I did that. Go on.
我已經打了。 繼續說。
What's done by night appears by day.
若要人不知，除非己莫為。
The EU -- following fine continental traditions --
歐洲人遵循優良的大陸傳統，