介绍： Many schools don’t place academic competitions at the top of their priority list.

练习：

According to one digital expert, no iPhone can be entirely free from hacking.

消极词：

消极词 （否定词）：
a.有消极前缀 （unusual）或者
b.有消极意义的词

（A. un - , in - , under – , undervalued = not appreciated ...

介绍： Many schools don’t place academic competitions at the top of their priority list.

练习：

According to one digital expert, no iPhone can be entirely free from hacking.

消极词：

消极词 （否定词）：
a.有消极前缀 （unusual）或者
b.有消极意义的词

（A. un - , in - , under – , undervalued = not appreciated
B. no, never, none, nothing，little ）