The word 实习生 is formed by combining three meaningful characters: 实 (shí), meaning "real" or "practical"; 习 (xí), meaning "to practice" or "to learn"; and 生 (shēng), meaning "person" or "one who is". It is constructed conceptually by sequentially building the idea: first establishing the realm of "practical" work, then specifying the action of "learning" within that realm, and finally denoting the "person" who performs this action, thus visually and semantically assembling the concept of a "trainee" or "intern" as an individual engaged in practical learning.