621.senior to 比年长;
622.in a sense 在某种意义上
623.sensitive to 对敏感;sensible 觉察到的;sensational 耸人听闻的
624.in sequence 按顺序,按先后次序
625.share in 分摊,分担
626.share sth. with与分享,分担,分摊,共用
627.be shocked at/by 对感到震惊
628.fall short of 达不到
629.go short of 缺乏
630.for short 为简便,简称
631.in short 简称
632.in short supply供应不足
633.be short of 缺乏,不够
634.be shy of 难为情,不好意思
635.at the side of 与相比
636.take the side of 站在边
637.catch the sight of 瞥见
638.at the sight of 一看见
639. in sight 看得见
out of sight看不见
640.know sb. by sight与只面熟