例句：
It could be a bit problematic, legally speaking.
从法律上说，可能是有点问题。
We are deeply concerned to get out of this problematic situation.
我们非常想摆脱这种问题重重的局面。
He decided to turn professional.
他决定转为职业人员。
She became a professional mezzo-soprano.
她成为一名专业的女中音歌手。