Statues and formulas, these mechanical tools of a serviceable use, or rather misuse, of his natural faculties, are the ankle-chains of a continuous immaturity.
雕像和公式，这些有用，或者更确切地说，滥用人类天赋的机械工具，是一种脚镣，持续且不成熟。
The carpet is worn but still serviceable.
地毯旧了，但还能用。
《牛津词典》
His Arabic was not as good as his English, but serviceable enough.
