由于他的海龄不够，不能得到提升。
He won't get promotion, as his sea experience is not enough.
奥本海默博士招募了28位年龄在18到40岁之间的志愿者，要求他们通过阅读一些文字资料来学习三类外星人“物种”的相关信息，每种外星人都有7个特征。
Dr Oppenheimer recruited 28 volunteers aged between 18 and 40 and asked them to learn, from written descriptions, about three "species" of extraterrestrial alien, each of which had seven features.
本试验选用190日龄海兰褐蛋鸡(128只)，随机分为四组。
In this test 128 Hailanhe layers aged 190 days were chosen and randomly divided into four groups.
本试验选用190日龄海兰褐蛋鸡(128只)，随机分为四组。
In this test 128 Hailanhe layers aged 190 days were chosen and randomly divided into four groups.
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