symmetrical 勻稱的，對(duì)稱的 The human face is more or less symmetrical. 人的面容或多或少是對(duì)稱的。 symposium 討論會(huì)，座談會(huì) The symposium on language teaching will be held next Sunday. 下周一的研討會(huì)是有關(guān)語言教學(xué)的。 tangle 糾紛；混亂狀態(tài) He got into an awful tangle with his homework, and had to ask me to help. 他家庭作業(yè)做得亂作一麻，不得不請(qǐng)我?guī)兔Α?temperament 氣質(zhì)，性情 Actors often display a lot of temperament. 演員常常需要飾演不同性格的人物。 tentative 試驗(yàn)性的，暫定的 The conservative researcher only made a tentative conclusion for his study. 保守的研究者為他的研究做了初步結(jié)論。 threshold 入口；門檻 She stood on the threshold for a minute then rang the door bell. 她在門口站了一分鐘，然后按響了門鈴。 tragic 悲劇的；悲痛的 The tragic accident caused by gas leak took the whole family’s lives. 由于氣體泄漏造成的事故使全家人喪命。