R-9:run into 巧遇
A:I ran into Ann downtown last week.
A:我上周在街上遇到了安。
B:Really? I haven't seen her for a year.
B:真的?我有一年没见过她了。
A:She said she went to Japan last year.
A:她说去年去了日本。
B:No wonder.
B:怪不得。