1、turn one's back on sb. 不理睬(某人),背棄,拋棄

　　同義替換：turn away from sb. in an impolite way

　　造句：We cannot turn our back on the world outside. 我們不能不去理睬整個(gè)世界。

　　2、behind one's back 背著某人(說壞話)

　　造句：Don't speak ill of him behind his back. 別在背后說他壞話。

　　3、be based on upon 基于

　　base原始涵義：

　　n.基礎(chǔ), 底座 The lamp stands on a circular base. 這盞臺燈是裝在圓形底座上的。

　　基地, 根據(jù)地 The country maintains military bases on foreign soil. 那個(gè)國家在國外設(shè)有軍事基地。

　　vt.把…建立在, 以…為基礎(chǔ) One should always base one's opinion on facts. 我們應(yīng)總是把自己的觀點(diǎn)建立在事實(shí)的基礎(chǔ)上。

　　基于;以…為根據(jù)(on， upon) He based the book on his own life. 他根據(jù)他自己的生活寫這本書。

　　vi.基于(on, upon) Fluctuating prices usually base on a fickle public's demand. 物價(jià)的波動往往因公眾需求的變化而造成。

　　造句：A visual interface is based on visual patterns. 視覺模式是視覺界面的基礎(chǔ)。

　　4、on the basis of 根據(jù)…, 在…基礎(chǔ)上

　　basis原始涵義：

　　n.基礎(chǔ),要素;基點(diǎn) The simplest basis for classification is in terms of structure or texture. 最簡單的分類基礎(chǔ)是結(jié)構(gòu)或構(gòu)造。

　　造句：On the basis of the evidence we deduced that he was guilty. 根據(jù)這些證據(jù)，我們推論他是有罪的。

　　5、beat…at 在…運(yùn)動項(xiàng)目上打贏

　　beat原始涵義：

　　vi. (心臟等)跳動 His heart was still beating. 他的心臟還在跳。

　　(翅膀)撲扇;有節(jié)奏地拍動;顫動，震動 The wings of the sea gull were beating frantically. 海鷗的翅膀在瘋狂地?fù)渖戎?/p>

　　vt. & vi.接連地?fù)舸?It is wrong to beat others. 打人是不對的。

　　vt.打敗 At last they beat their enemy. 最終, 他們打敗了敵人。

　　n.敲打, 敲打聲 We heard the beat of a drum.

　　造句：He said that no one could beat him at tennis, but he had to eat his words after losing several games. 他說過打網(wǎng)球誰都贏不了他，可是輸了幾場比賽后他不得不認(rèn)錯了。