This led to a drop in test scores in that first year, said Bruce Sacerdote, an economist at Dartmouth College in New Hampshire.

新罕布什尔州达特茅斯学院的经济学家布鲁斯·萨瑟多特说，这导致了学生第一年的考试成绩下降。

Allison Sacerdote-Velat, one of Dr Magle's colleagues at Lincoln Park Zoo, and Richard King of Northern Illinois University, wondered what effect this chemical has on the world when the leaves fall off.

阿里森，（玛格拉在林肯动物园的同事）和北部伊利诺斯州大学的瑞查德，均好奇当叶子脱落后，这种化学物对地面有何影响。