Composite opals make perfect entry-level opal jewellery and are especially welcomed as gifts.

合成欧珀是欧珀首饰绝佳的低端产品，作为馈赠礼品，格外受到青睐。

youdao

Perfect property: Locating a table entry requires o (1) time-that is, at most, one string comparison is required to perform keyword recognition within the static search set.

perfect property：查找时间复杂度为o(1)的表条目—就是说，至多需要一个字符串比较执行静态搜索集中的关键字识别。

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To perfect the inspection and quarantine requirement of entry fruits and improve inspection technique of residue and pests.

完善进口水果检验检疫要求，提高农残和有害生物检测手段。

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It was the perfect barrier to entry.

FORBES: Forget Apple's iPad, Publishers Need To Worry About Tigers

All the search engines follow these robot directives, which, while not a perfect security solution, limit the entry points used by the bots and spiders that index the Web.

FORBES: Google Me Not