n.客观存在性；外在性
It is absurd to go out in such terrible weather. 在这麽恶劣的天气里出去太荒唐。
He took out a fire insurance policy for his house. 他为自己的房子办理了一份火险保险单。
He's been in and out of prison for years. 他多年来屡次进出监狱。
The lifeboat went out to a ship in distress. 救生船去救一艘遇险的船只。
The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
n.坚固；刚毅；肥满
