開拓性工作 — kāi tà xìng gōng zuò

1

kāi¹

to open; to start, to initiate, to begin / to develop, to expand, to open up / sex, nature, character; suffix converting a verb to an adjective / labor, work; laborer, worker / to make; to write, to compose; to act, to perform

2

tà⁴

to open; to start, to initiate, to begin / to develop, to expand, to open up / sex, nature, character; suffix converting a verb to an adjective / labor, work; laborer, worker / to make; to write, to compose; to act, to perform

3

xìng⁴

to open; to start, to initiate, to begin / to develop, to expand, to open up / sex, nature, character; suffix converting a verb to an adjective / labor, work; laborer, worker / to make; to write, to compose; to act, to perform

4

gōng¹

to open; to start, to initiate, to begin / to develop, to expand, to open up / sex, nature, character; suffix converting a verb to an adjective / labor, work; laborer, worker / to make; to write, to compose; to act, to perform

5

zuò⁴

to open; to start, to initiate, to begin / to develop, to expand, to open up / sex, nature, character; suffix converting a verb to an adjective / labor, work; laborer, worker / to make; to write, to compose; to act, to perform

As word