fence n．柵欄，圍墻，劍術vt. 用籬笆圍住，防護vi. 擊劍，圍以柵欄

例句：One end of the garden was fenced off for chickens.

花園的一端已用籬笆隔開來養雞。

defense n. 國防部，防衛，防衛物vt. 謀劃抵御

例句：The forest around the city will act as a defense against desertdust.

城市周圍的森林能起防御沙漠灰沙的作用。

offence n. 犯罪，冒犯，違反，罪過，過錯

例句：They were arrested for drug offences.

他們因吸毒罪而被逮捕。

offend v. 犯罪，冒犯，違反，得罪，使……不懈快

例句：David wishes ill to no one except those who intentionally offendhim.

大衛不盼任何人倒霉，除了那些有意冒犯他的人。

offensive adj. 討厭的，無禮的，攻擊性的 n．進攻，攻勢

例句：You will find it difficult to explain your use of such offensivelanguage.

你使用這祥無禮的語言是很難解釋的。