惘然若失: disconcertedly feel lost; be all adrift; feel disturbed as if having lost sth.; look blank [distracted]; wear a blank look; vacant 短语和例子詹姆斯无所适从, 惘然若失。 james was at a loss as to what to do
詹姆斯无所适从惘然若失: james was at a loss as to what to do and felt lost
