填出所缺少的单词，你就会赢得一件T恤。Supply the missing word(s) and you could win a T-shirt.新鲜空气对健康是不可缺少的.Fresh air is fundamental to good health.这些是不可缺少的附件.These are indispensable accessories....
income from tourism旅游业收益Without a major boost in tourism, the economy will suffer even further.旅游业如果没有大的起色，经济状况会每况愈下。A catastrophic fall in tourism in the Olympic year is also overshadowing optimism.游客数量的大幅度下降也给原本乐观的前景蒙上...
Objective : To explore the influence of Bifidobacterium on murine humoral immune function.目的: 探讨双歧杆菌减少对小鼠体液免疫功能的影响.The ability of humoral antibodies to inhibit tumor growth varies with different cell types.体液抗体抑制肿瘤生长的能力因...
Objective To summarize the experience of VATS clinic application.目的总结电视胸腔镜手术(vats) 胸外科疾病治疗中的临床应用经验....barrel-makers whose trade was rendered obsolete by the introduction of stainless steel wine vats.不锈钢葡萄酒桶的出现使木制酒桶制造者没了生...