an unpredictable person who may cause problems
一个无法预测的可能引发问题的人 (yí gè wú fǎ yù cè de kě néng yǐn fā wèn tí de rén)
"He’s a loose cannon who often says things without thinking."
"他是一个松散的大炮，经常在没有思考的情况下说话。" (tā shì yí gè **sōng sàn de dà pào**, jīng cháng zài méi yǒu sī kǎo de qíng kuàng xià shuō huà)
to take credit for someone else’s idea or success
A creation that turns against its creator.
to meet the required standard
a true friend helps you in difficult times
to contact or communicate with someone
the basic practical details of something
