首先 | shǒu xiān | first (of all); in the first place | |
先进 | xiān jìn | advanced (technology); to advance | |
先后 | xiān hòu | early or late; priority; in succession; one after another | |
率先 | shuài xiān | to take the lead; to show initiative | |
领先 | lǐng xiān | to lead; to be in front |