例句：
Their efforts were unavailing.
他們的努力都付諸東流。
Her parents were Albanian.
她的父母是阿爾巴尼亞人。
The doors were padlocked.
門(mén)都用掛鎖鎖著。
You could have been killed!
你本可能被殺了。
These figures have been disputed.
有人對(duì)這些數(shù)字提出了質(zhì)疑。
What've you been up to?
你一直在搞什么名堂？