他总是第一个主动提出帮忙。
我们要生第一个孩子了。
第一个问题是小菜一碟。
她不同凡响，是第一个飞越大西洋的女子。
She had the distinction of being the first woman to fly the Atlantic.
他讲的第一个笑话博得了当晚最开怀的笑声。
第一个孩子出生后她就从全职工作改为兼职工作。
She made the switch from full-time to part-time work when her first child was born.
他的妻子生下了他们的第一个孩子，他对此欣喜若狂。
His wife gave birth to their first child, and he was ecstatic about it.
第一个孩子的出世使他们的婚姻生活开始了一个新阶段。
The birth of their first child marked the beginning of a new era in their married life.
他是第一个开发杂交水稻品种的人。
希望我是第一个送你们月饼的人哦！
I hope that I am the first person who gives you the mooncake!
他是第一个获得这一奖项的中国人。
他是第一个飞越大西洋的人。
他是世界上第一个培育杂交水稻的人。
He was the first person in the world to develop hybrid rice.
你知道第一个奥运会吉祥物是什么吗？
这是我的第一个科学发现。
据说神农是第一个发现茶作为饮料的人。
It is said that Shen Nong was the first to discover tea as a drink.
他是美国第一个发布每日天气预报的人。
He was the first person to publish daily weather forecasts in the United States.
上海是中国第一个制定垃圾分类政策的城市。
Shanghai is the first city in China to make a garbage-sorting policy.
即使雪还在融化，梅花树也是第一个开花的。
The plum trees are the first to flower even as the snow is melting.
袁隆平是第一个研发杂交水稻的伟大科学家。
Yuan Longping is a great scientist who is the first person to develop hybrid rice.
1967年，世界上第一个食品银行在美国成立。
他和他的团队建立了世界上第一个海洋清理系统。
He has set up the world's first ocean cleanup system with his team.
她是我在新学校的第一个朋友，也是最好的朋友。
1920年，世界上第一个三色交通灯投入使用。
In 1920, the world's first three-color traffic light was put to use.
我要用我挣的第一个便士，给爸爸买一件新衣服。
With the very first pennies I make, I'll buy Father a new cloth coat.
他还成为了第一个获得奥运短道速滑金牌的中国人。
He also became the first Chinese man to take home an Olympic short track gold medal.
北斗卫星导航系统是中国第一个全球卫星导航系统。
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