459．n.輕拍 v.輕拍pat on the back贊揚：贊揚或同意的話或手勢：

(例) received a pat on the back for doing a good job.工作干得出色而得到贊揚

(例) He patted the boy on the head.他輕拍那男孩的頭。

460．peak   n.山頂, 頂點，頂峰

(例) It was the peak of summer in Ningbo. 這是寧波夏季最熱的時期。

461．phenomenon  n.現象【復數】 phenomena

(例) a natural phenomenon自然現象   a social phenomenon社會現象

462．reluctant  adj. 不情愿的, 勉強的

(例)a reluctant smile  勉強的微笑  reluctant to help不情愿幫忙

463. rely   vi. (on, upon)依賴， 指望

(例) She relies on her parents for tuition. 她的學費依賴于她的父母。

464．relevant  adj.有關的, 相應的

(例)The scientist corresponds with colleagues in order to learn about matters relevant to her own research. 那個科學家和同事們相互通信以了解和她自己的研究有關的事。

465. reliable  adj.可靠的, 可信賴的

(例) a reliable source of information 可靠的消息來源  a reliable assistant可靠的助手

466. relief   n. 輕松，寬慰，減輕

(例) It was a great relief to find they are safe. 得知他們平安無事才叫人大為寬心。

（例）Will this medicine give immediate relief from pain?吃了這藥能馬上止痛嗎？

467．reputation  n.名譽, 名聲

(例) If the fact is published, it will ruin your reputation. 一旦公布事實真相將會毀了你的名譽。

468．rescue  vt.援救, 營救   n.援救, 營救

(例)It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.不久一架直升飛機飛到了現場，來搭救這次飛機失事的幸存者。

469. triangle  n. 三角形

(例)a triangle of land 三角形的一塊地

470. sequence  n. 連續，順序  in sequence一個接一個；依次地

(例) a sequence of victories一連串的勝利  in chronological sequence按照年代順序地

471. shallow  adj. 淺的；膚淺的

(例) The stream is shallow.那條小溪水很淺。   a shallow person膚淺的人

472．shiver  vi/n. 發抖，打顫

(例) The divers were shivering with cold.那些潛水員冷得直打顫。

（例）A shiver ran down my back. 我打了個冷顫。

473．shrug  v/n. 聳肩  shrug off 對…不屑一顧：縮小…的重要性：

(例) shrugged off the defeat and talked about tonight's game.對失敗不屑一顧而談論今晚的比賽

（例）He shrugged, saying that he had nothing to do with it.他聳聳肩膀說，他和那事毫無關系。

474．signature  n. 簽名

(例) He put his signature on the contract.他在那份合同上簽了名。

475．sincere  adj. 誠摯的，真誠的

(例) His apology didn’t seem sincere. 他的道歉看起來不是真誠的。

476．utility  n. 功用，效用

(例) I have always doubted the utility of these conferences on disarmament.

我一直懷疑這些裁軍會議的效用。

477. utilize  vt. 利用

(例) In the 19th century waterpower was widely utilized to generate electricity.

在19世紀人們大規模使用水力來發電。