Then A is positive semidefinite, negativedefinite and negative semidefinite.
一封好的商业书信应该是明确的、直截了当的。
2
Because he is so tall, sometimes if he looks less impressive in one situation, people make a definitenegative judgement.
因为他太高了，有的时候，如果他在某种情形下看起来不大令人印象深刻，人们就会做出一定的负面评价。
3
If you want to effectively deal with negative people and be a champion of positivity, then your best route is to take definite action through some of the steps below.