Whether I brought home an A (or, later, secured a coveted fellowship, internship, or job) or not – and there were times I didn’t – I knew my self worth.

不管我带回家的成绩单上是否是A（或者以后是否能够获得令人觊觎的奖学金，实习机会，或工作），即使有些时候答案是否定的，我也知道自己的的价值。

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The radio should be secured to a solid surface, using the mounting bracket and self-tapping screws supplied.

收音机应用安装支架和自攻螺丝固定在坚固的表面上。

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After a shaky start, Mosul's self-appointed leader, Mishaan Jabouri, has secured both American and local approval by establishing a large, broadly representative local council that is expected to elect a new governor this week.

ECONOMIST: Iraq's post-war disorder

Google was awarded an autonomous car patent in 2011, and secured a Nevada driving licence for its self-drive car in May 2012.

BBC: Toyota sneak previews self-drive car ahead of tech show