621. senior to 比…年长; junior to 比…轻;

superior to 比…更好; inferior to 比…差

622. in a sense 在某种意义上

623. sensitive to 对…敏感; sensible (of)觉察到的; sensational耸人听闻的

624. in sequence 按顺序, 按先后次序

625. share in (=have a 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 (=be without enough of) 缺乏

630. for short (in a short form) 为简便,简称

631. in short (=in a few words, in brief)简称

632. in short supply 供应不足

633. be short of (=lacking enough)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…一边

637. catch the sight of (=see for a moment)瞥见

638. at the sight of 一看见…

639. (be)in sight (=in view, visible) 看得见

out of sight 看不见

640. know sb. by sight 与…只面熟