lose heart
US /luːz hɑːrt/
UK /luːz hɑːrt/

1.
灰心, 丧失信心
to become discouraged or to give up hope
:
•
Don't lose heart, you're almost there!
别灰心,你快成功了!
•
After several rejections, she started to lose heart.
几次被拒绝后,她开始灰心。
灰心, 丧失信心
to become discouraged or to give up hope