含有零冠词的短语
零冠词短语
arm in arm臂挽臂
at first最初at home在家中
at last最后，终于at most至多
by hand手工
catch fire着火
day after day 日复一日day and night 日日夜夜day by day一天天地
face to face面对面
from beginning to end 自始至终
from door to door挨家挨户from east to west从东到西from time to time时不时地hand in hand手拉手
in bed在睡觉in danger处于危险中
weight的短语lose heart灰心，丧气lose weight减肥
on foot步行on time准时
one by one一个接一个地
step by step一步一步地
take part in参加