一技之长的英文：
[Literal Meaning]
one/skill/aux./one
some kind of professional skill

[解释]
技：技能；长：擅长。指有某种技能或特长。

[Explanation]
a professional skill

[例子]
在现代社会激烈的竞争下，学会一技之长是非常必要的。

[Example]
In the fierce competition of modern society, learning a professional skill is necessary.

His professional skill was neglected.
他的一技之长被埋没了。

some schools even combine compulsory education with vocational education to enhance the students' career opportunities
有的实行义务教育和职业教育相结合的办校方针，使孤儿毕业后有一技之长。