◎ 打基础 dǎ jīchǔ
(1) [found]∶使某些事物得到稳固支持
(2) [do spade work;lay a foundation]∶为建筑工程准备地基
(3) [prepare oneself for bigger tasks ahead]∶为迎接更大的任务提前做准备

1.do spade work; prepare oneself for bigger tasks ahead