Some women experience morning sickness during the first trimester of pregnancy.有些妇女在怀孕的头三个月里，早上有恶心感。Faintness and morning sickness can be signs that you are pregnant.头昏和晨吐都可能是怀孕的征兆。She suffered badly from morning sickness.她妊娠晨吐严重，十分难受。Ginger is a popular remedy for morning sickness.人们通常用生姜来治疗孕妇晨吐。