powerful Very Useful Come in handy
The memory expansion cards are useful adjuncts to the computer.
内存扩充卡是计算机很有用的附件。
—— 给力词典精选This variety of dog is very useful for hunting.
这种狗对狩猎很有用。
—— 给力词典精选Information about people´s language ability is often very useful.
有关人们语言能力的信息经常是很有用的。
—— 给力词典精选This dictionary is very useful, only it is a bit costly.
这本词典很有用, 左不过贵了些。
—— 给力词典精选The child-care centre is a useful facility for working parents.
托儿所对有工作的父母来说是很有用的设施。
—— 给力词典精选