Definition
to dedicate a significant amount of time or energy to accomplish something
投入（大量的時間或精力）
She put in several months of time for this project.
她為這個項目投入了幾個月的時間。
He put a lot of energy into learning the foreign language.
他投入了很多精力來學習外語。
They put significant resources into achieving this goal.
他們投入了大量資源來實現這個目標。