serviceable
adj
1 in usable condition 可使用的
The tyres are worn but still serviceable. 这些轮胎已磨损, 但尚可用.
2 suitable for ordinary use or hard wear (and not designed to be ornamental); durable; long-lasting 适於一般用途的, 禁磨的(非装饰性的); 耐用的
serviceable clothes for children 耐穿的儿童衣物.
On the subject of reading, Francis Bacon, who lived at about the same time as shakespeare, wrote these words, Some books are to be tasted, others to be swallowed, and some few to be chewed and digested. This good advice shows how it is possible to read