[shí jī]
opportunity; an opportune moment
choice of the right moment
時機的選擇
when the opportunity arises; at the opportune moment
時機一到
miss the opportunity
錯過時機
wait for an opportunity; bide one's time
等待時機
lose no time in doing sth.
不失時機地做某事
a well-timed action
時機恰當的行動
The opportunity has not yet arrived.
時機尚未成熟。