俗话说“条条大路通罗马”，背诵
1601. striking= dramatic a. 惊人的
1602. string= series n. 一系列
1603. stringent =strict a. 严厉的
1604. strip =remove v. 剥去
1605. stunning=astounding adj.使人震惊的
1606. sturdy =strong a. 结实的;强壮的
1607. stylus= pen n. 钢笔
1608. subject to= vulnerable to a. 易受…影响的
1609. subjected to= dominated by v. 控制
1610. subsequent = ensuing adj. 之后的，接着
1611. subsequent =later a. 后来的;随后的
1612. subsequent= ensuing a. 后来的;随后的
1613. subsequent=following in time 在…之后
1614. subsequently = later adv. 后来, 接着
1615. subsidiary =less important a. 次要的
1616. substantial = large amount/considerable
1617. substantial =essential a. 重大的;真实的
1618. substantial =sturdy a. 坚固的
1619. substantial= actual a. 重大的;真实的
1620. substantial= significant a. 重大的;真实的
1621. substantial=enough adj.重大的，重要的
1622. substantially =importantly ad. 重大地
1623. substantiate =confirm v. 证明;证实
1624. substitute =replacement n. 代替物
1625. substitute= replace v. 代替
1626. subtle = small adj. 微小的
1627. succession =series n. 一系列
1628. successive=continuous adj.连续的
1629. successively=one after another adv.相继的
1630. sue=raise a legal action against vt. 控告
1631. suitable =appropriate a. 合适的
1632. suited =appropriated a. 合适的
1633. sumptuous= luxurious a. 奢侈的;豪华的
1634. sunk= down to the bottom a. 下陷的
1635. supersede=replace v.取代，代替
1636. supplant= replace v. 代替;
1637. supplant= substitute v. 代替;取代
1638. supplement = addition n. 增补
1639. supplemental=additional adj.额外的
1640. suppress =stop by force v. 制止;
1641. surmise= assumption v. 推测;猜测
1642. surmise= guess v. 推测;猜测
1643. surmise= infer v. 推测;猜测
1644. surplus =extra a. 过剩的
1645. surplus= excess a. 过剩的
1646. surveillance= careful observation n. 监视;检查
1647. susceptible to =prone to a. 易受…影响的
1648. susceptible to=be subject to 容易受到…的影响
1649. suspect= believe v. 猜想;疑有
1650. suspect= doubt v. 猜想;疑有
1651. suspend = float vt. 悬浮
1652. suspend =hang v. 悬挂
1653. sustain =support v. 支撑;支持
1654. sustain= persist v. 支持
1655. sustainable = endurable adj. 持久的
1656. sustenance= food n. 生计;食物
1657. sustenance= life n. 生计;食物
1658. sustenance= living n. 生计;食物
1659. swell =enlargement n. 增大;肿胀
1660. swell =expand v. 增大;肿胀
1661. swiftly =quickly ad. 迅速地
1662. symmetric= balance a. 对称的;均衡的
1663. synthesis= combination n. 合成
1664. tactic = strategy n. 策略，方法
1665. tactual= textural a. 触觉的
1666. tailspin= total confusion n. 混乱; 失控
1667. take place= occur phrv. 发生
1668. take= require v. 需要
1669. tame= domesticate v. 驯服;驯化
1670. tangible =material a. 有形的;实际的
1671. tangible =physical a. 有形的;实际的
1672. tangible=real/ concrete adj.实在的，有形的
1673. tantalizing =anxious a. 非常着急的
1674. taper= diminish v. 逐渐变小
1675. task= work n. 任务
1676. technique= method n. 手段;方法
1677. teem with= be full of phrv. 充满;遍布
1678. tempting= appealing a. 吸引人的;诱人的
1679. tenacity=stability n.固执
1680. tend= care for v. 趋于;照料
1681. tendency= inclination n. 倾向
1682. tenet= belief n. 原则;信条
1683. tenet= principle n. 原则;信条
1684. tension =pressure n. 紧张
1685. tenuous = weak a.脆弱的，无力的
1686. terminal= final a. 末端的;终点的
1687. terminated by = finished by 结束, 终结
1688. terrain= tract(大片土地) n. 地形;地势
1689. testify= give evidence v. 作证
1690. therefore =consequently ad. 因此
1691. therefore= in that purpose ad. 因此
1692. thorough=complete adj. 彻底的;十分的;周密的
1693. thoroughly= completely ad. 完全地;彻底
1694. threaten= endanger v. 危及
1695. threshold = limitation n. 局限，界限
1696. threshold =limit n. 界限;起始点
1697. thrill=excitement n.兴奋
1698. through= by prep. 通过
1699. throughout=during the period 始终
1700. thus= consequently ad. 因此