slow release的用法和樣例：
例句
- They froze Earth deliberately to assure that such toxins would release slowly.
他們故意凍結了地球來(lái)保證這些毒素可以緩慢釋放。 - These stents slowly release a medication that preents the build-up of scar tissue, which can result in reclosing of arteries.
瘢痕組織增生能夠導致動(dòng)脈再閉合，而上述支架能夠緩慢釋放一種藥物阻止瘢痕增生，進(jìn)而達到預防動(dòng)脈再閉合的目的。
