already
/ɔːlˈredɪ/adverb
1
- before or by now or the time in question已经, 早已：
Anna has suffered a great deal already.
安娜已经经受了很多痛苦。
1.1
- as surprisingly soon or early as this就已经（指令人吃惊地快或早）：
at 31, he already suffers from arthritis
才31岁, 他就已经患了关节炎
already it was past four o'clock.
都已经过4点了。
2
- N. Amer. informal used as an intensive after a word or phrase to express impatience〈北美, 非正式〉够了（用于词或短语之后加强语气, 表示不耐烦）：
enough already with these crazy kids and their wacky dances!
真受够了这些疯狂的孩子们和他们疯疯癫癫的舞蹈！
词源
Middle English: from ALL (as an adverb) + READY; sense 2 is influenced by Yiddish use.