They were casually dressed; possibly students.
他們穿著隨意，可能是學生。
"You can't possibly use this word."—"So I won't."
“你不可能會用這個詞。”—“我確實不會用。”
They've done everything they can possibly think of.
凡是可能想得到的，他們都已經做了。
No one could possibly take exception to his comments.
任何人都不可能對他的意見提出異議。
Suddenly it dawned on me that they couldn't possibly have met before.
我突然明白他們以前不可能見過面。