例句1：While formal learning is transmitted by teachers selected to perform this role , informal learning is acquired as a natural part of a child's development .

【重点词汇解析】transmit，vt. 传输、传播 vi. 传输、发射信号；（in）formal，adj. （非）正式的

【参考翻译】尽管正式的学习过程是由挑选出来担当此角色的教师来进行的，非正式的学习过程却是作为孩子成长的自然一部分而完成的。

例句2：While it is true that this competition may induce efforts to expand territory at the expense of others , and thus lead to conflict , it cannot be said that war-like conflict among other nations is inevitable , although competition is .

【重点词汇解析】territory，n. 领土、版图；expense，n. 代价、损失 vt. 向……收取费用；inevitable，adj. 不可避免的

【参考翻译】虽然这种竞争会引发以他人利益为代价的领土扩张行动，因此也会引发冲突，但却不能认为类似于战争的国家间的冲突不可避免，尽管竞争是不可避免的。

例句3： While it is true that to date the Internet seems to be favoring the most developed sectors of the international community over the less developed , this need not always be the case .

【重点词汇解析】favor，vt. 喜欢、赞成 n. 喜爱

【参考翻译】尽管迄今为止互联网似乎更加青睐国际社会中的发达领域，而非不太发达的领域，情形并不总是如此。