They learn first hand about the health and nutrition of dairy cattle, as well as the science of making butter, cheese, and other dairy products.
他们亲自了解有关奶牛的健康和营养知识，以及制作黄油，奶酪和其他乳制品的技术。
We learn first-hand about the principles of gravity the first time we fall down, and we experience many other physical laws early on in our lives.
我们在第一次摔倒的时候就学会了重力原则，我们在小的时候就感受到了许多其他的物理法则。
We were able to hear from Iraqis first hand about what life was and is like: how it has changed and whether things were getting better or worse over time.
我们因此得以从伊拉克人那里获得有关生活今昔对比的第一手情况：生活有哪些变化，情况是在好转还是在恶化？
Orpheus has begun leading workshops at the Manhattan and Juilliard schools of music, and students are learning at first hand about some of the difficulties that Orpheus has taken years to overcome.
奥菲斯已经在曼哈顿音乐学院和朱莉亚音乐学院开设学习班，学员们可以在第一时间了解到奥菲斯乐团花费多年克服的各种困难。
Clinton advisers have not tipped their hand about what banking changes they may recommend.
克林顿的顾问们没有透露在银行方面建议做何修改。
Currently the AIA is exploring ways to bring a group of its members over to China to learn first-hand about the market.
当前，AIA正在寻求途径让一部分会员到中国去了解第一手的市场资料。
Currently the AIA is exploring ways to bring a group of its members over to China to learn first-hand about the market.
当前，AIA正在寻求途径让一部分会员到中国去了解第一手的市场资料。
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