After a fruitless morning sitting at his desk he had given up.
他在书桌前徒劳地坐了一个上午后便放弃了。
那是一次毫无结果的搜寻。
To read more, if not used, it is a fruitless bud.
读书再多，倘不应用，就是一朵不结果实的花蕾。
After a fruitless search, he told his mother the lens was nowhere to be found.
找了一会儿，他汇报母亲找不到了。
After a fruitless search, he told his mother the lens was nowhere to be found.
找了一会儿，他汇报母亲找不到了。
应用推荐