小题1:remind us of/ make us think of
小题2:doesn’t mind doing extra work for the students’ union
小题3:not to forgive others for their mistakes
小题4:explaining things to us
小题5:doing experiments
小题1:remind us of/ make us think of
小题2:doesn’t mind doing extra work for the students’ union
小题3:not to forgive others for their mistakes
小题4:explaining things to us
小题5:doing experiments