Understudying
v. 练习做临时演员( understudy的现在分词 )
🗣️ 情景例句
I'll be off to bed myself in a minute.
我再过一会也要上床睡觉了。
Life is measured by thought and action, not by time.
生命的价值是用思想和行为来衡量的，而不是寿命的长短。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些计划去偏远地区旅行，或在饮用水不现成的国家居住的人，应该知道如何使水适于饮用的各种办法。