shelving method的相关资料：
临近单词
shekel
she
She was born of humbleparentage.
She has traveled through Europe.
She knew nothing about children.
She was being positively chatty.
She was consumed with curiosity.
She gave us a washing-machine.
She loathes watching television.
She has tamed down considerably.
She protested about the expense.
She wailed over her misfortunes.
