1.Mistakes due to carelessness may have serious consequences.作后置定语,“因为粗心的错误”
2.should可以表推测,意思是“按道理讲应该”,语气比must弱.should not表推测则是“恐怕不会”的意思
1.Mistakes due to carelessness may have serious consequences.作后置定语,“因为粗心的错误”
2.should可以表推测,意思是“按道理讲应该”,语气比must弱.should not表推测则是“恐怕不会”的意思