er
noun
ɜː
1
a
sound
you
make
when
you
do
not
know
exactly
what
to
say
next
[英] 嗯，哦〔表示犹豫、迟疑〕
Well,
er
–
I’m
not
really
sure.
嗯，哦 — 我不太有把握。
ˌiːˈɑː
noun
2
EMERGENCY
ROOM
[美，非正式] 〔医院的〕急救室，急诊室