1 . It has nothing to do with you. There’s no point getting ________ (心烦意乱的,沮丧的) about it. (根据汉语提示单词拼写)

2 . So I have to take out what I think is the really ________ (必不可少的) part and cover them in the lecture. (根据汉语提示单词拼写)

3 . It’ s all very ________ (难懂的) —but I’ll try and explain. (根据汉语提示单词拼写)

4 . The guidance also provides ________ (实际的) examples to aid educators in ensuring the safety of their students. （根据汉语提示单词拼写)