adj.幼稚无经验的，未谙世事的
n.低湿的牧场

The callow youth lacked experience in the business world.
这个涉世未深的年轻人在商界缺乏经验。
His callow ambition led him to take on too many responsibilities at once.
他初生牛犊不怕虎，一心想同时承担太多职责。
The callow student stumbled over simple questions during the exam.
那个年轻的学生成绩考试时对简单问题也答得磕磕绊绊。
The coach had to guide the callow team through their first championship season.
教练不得不带领新手队伍度过他们的首个冠军赛季。
She was startled by the callow confidence of her young colleague.
她被年轻同事那种未经世故的自信所震惊。
After a few years, he became less callow and more mature in his thinking.
几年后，他的思想变得更加成熟，不再那么稚嫩。
The callow politician's speeches were often filled with empty promises.
这位年轻的政客的演讲常常充斥着空洞的承诺。
The callow actor struggled to portray the depth of the character's emotions.
这位新手演员难以表现出角色深层次的情感。
His callow enthusiasm for the project won him the support of his colleagues.
他对项目的青涩热情赢得了同事的支持。
The callow days of our youth are filled with endless possibilities.
我们青春时期的懵懂岁月充满了无尽的可能性。