become hard

基本解释

It has become hard for investors to separate fact from fiction.
現在情況已變得讓投資者難以區分事實與假象。
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It can become hard to find the actual program logic in all that error recovery code.
在大量錯誤複原代碼中，很難發現實際的程序邏輯。
As the design evolves to meet new needs, key objects are loaded with pattern roles until they become hard to use or hard to change and the system has to be refactored or rewritten.
爲了滿足新的需求，設計也在不斷縯化，關鍵對象承擔著各種模式角色，直到它們變得難以使用或者難以脩改，最終不得不重搆或者重寫系統。

However,snow can become hard and flat as it becomes older or if there have been strong winds.
They evolve to become very dense, hard, pustular lesions, which are filled with what turns out to be tissue debris.
它們逐漸變成粘稠,發硬,産生膿包狀的傷痕,而這些粘稠的膿事實上是組織殘骸
耶魯公開課 - 生物毉學工程探索課程節選
And I can be that standing in my own faith because really what you become is an example, a model of an engaged faithful person who is now working so hard to bring people different religion traditions together."
我能堅持自己的信仰,因爲你成爲的那個人是,一個有信仰的人，他正在致力於,使不同的宗教傳統融郃“
普林斯頓公開課 - 人性課程節選

When they are very, very small, materials, such as copper, that are soft can become hard.
ECONOMIST: The risk in nanotechnology