1.second hand （資料等）第二手的，間接的；用過的，舊的

例句：So how can cigarette smokers, or people exposed to secondhand smoke, lower the risk of lung cancer?

因此如何使那些吸煙者，或是細二手煙的人們降低患肺癌的危險呢？

2.second nature 第二天性，習性

例句：New systems take time before they become second nature, so work hard at sticking to it and developing those new habits.

在新的方法變成第二天性之前，會花一段時間，所以要努力堅持它，將其發展為新的習慣。

3.second sight 超人的視力，預見力，洞察力

例句：Jane's mother has second sight and correctly predictedthe date on which Jane met the man she eventually married.

簡的母親有先見之明，她能正確地預見簡哪一天會碰上她的未婚夫。

4.second thoughts 重新考慮,進一步的考慮

例句：This murderous lunatic could kill them both without asecond thought.

這個殺人狂會毫不猶豫地把他們兩人都殺掉。

5.second to none 不比任何人差，首屈一指

例句：In the output of grain, China is second to none.

在糧食產量上， 中國首屈一指。

6.secondary school 中學

例句：He is trying to set up a new secondary school in Actonbecause he is not satisfied with the choice facing his four children under six.

他也正努力在阿克頓建立一所新的中等學校。 他對他那四個不到六歲的孩子將要面臨的選擇而不滿。