Geography was my weak subject.

地理课是我的弱项。

《柯林斯英汉双解大词典》

Many researchers fault case-control work as being a weak method for showing direct causality, especially because it is subject to substantial recall bias.

很多研究员都指责案例对照法不是展现因果关系直接有力的方法，尤其因为它受制于大量的记忆误差。

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This paper will explore it with reference to the background, love subject, narration change and its significance in literary history so as to improve the weak study in this aspect.

本文从产生背景、爱情主题、叙事变革及其在文学史上的意义等四个方面对该论题加以论述，以加强文学史上这一薄弱环节的研究。

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In just 19 words, it provides an impressive selection of current widespread writing woes: dangling modifier ("vestiges" didn't walk in the front door), poor word choice ("vestiges, " "domesticity, " "regardless"), excessive prepositions (four in all) and an underappreciated but pervasive ill, a weak sentence-subject ("vestiges").

WSJ: Word Craft: Ben Yagoda on Not Writing Badly

Its judicial system is said to be weak, corrupt and subject to political pressure.

ECONOMIST: Cambodia

The Democrats are the party of a weak, floating dollar, subject to the whims of an unaccountable Federal Reserve.

FORBES: It's Time To Bury The Republican Party And Start All Over