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- Open back: Common style of case bound book. Also called hollow back. 空背:精装书籍的常用款式。
- Hollow back The normal cased book is a hollow back but this is assumed and therefore not specified. See Back. 一般精装书籍均假定为空背,不用特别说明。参阅书背。
- Hollow back: The normal cased book is a hollow back but this is assumed and therefore not specified. 空背:一般精装书籍均假定为空背，不用特别说明。
- By 2006, Johnson was ready with new skills, including a Jaeger on bars, and two top-difficulty skills: full-in beam dismount and double-twisting double back floor exercise mount.She won the 2006 U. 到2006年;约翰逊准备好了各项新技术;包括高低杠的叶格尔空翻和两个世界级的高难度动作:平衡木的早旋落地与自由体操的连续两次向后翻腾两周.;那年她以高于任何其他高级选手的的得分赢得了2006年美国国家锦标赛少年组全能冠军
- The ball bounded back from the floor. 球从地址上反弹回来。
- The small ball dropped back to the floor. 小球又落回到地板上。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
- A round hollow in a hillside; a cirque. 盆地山区中的圆的洼地
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- She held the small bird in the hollow of her hand. 她把那小鸟握在掌心里。
- The crowd fell back to let the players through. 人群后退让运动员们通过。
- Let's have a picnic down in the hollow. 咱们到下面的山谷去野餐吧。
- We heard a hollow boom of thunder. 我们听到低沈的隆隆雷声。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼，你很快会恢复健康的。
- The ship beat back against a monsoon. 船逆着季风艰难地行驶。
- These chocolate eggs are all hollow. 这些巧克力蛋都是空心的。
- I flap the flies away but soon they fly back. 我把苍蝇赶走，但一会儿又飞回来了。
