投入

The Chinese word 投入 (tòurù) is composed of two characters: 投 (tòu) and 入 (rù). The character 投 originally meant "to throw" or "to cast," and it is often used in the sense of "to invest" or "to put in." The character 入 originally meant "to enter" or "to go into," and it is often used in the sense of "to join" or "to participate." When these two characters are combined, they form the word 投入, which can be translated as "to invest" or "to put in." In a more abstract sense, it can also mean "to devote oneself" or "to immerse oneself." For example, we can say 投入工作 (tòurù gōngzuò) to mean "to devote oneself to work" or 投入学习 (tòurù xuéxí) to mean "to immerse oneself in study."