好好

好好

1. all out; to one's heart's content; earnestly; hard (of way of working)

   我會好好努力把我的博士讀完。 [MSC, trad.]
   我会好好努力把我的博士读完。 [MSC, simp.]

   Wǒ huì hǎohǎo nǔlì bǎ wǒ de bóshì dúwán. [Pinyin]

   I will work hard to finish my doctorate.

   讓我再好好兒想想。 [MSC, trad.]
   让我再好好儿想想。 [MSC, simp.]

   Ràng wǒ zài hǎohāor xiǎng xiǎng. [Pinyin]

   Let me think it over again carefully.

   今天不好好工作，明天工作都難保。 [MSC, trad.]
   今天不好好工作，明天工作都难保。 [MSC, simp.]

   Jīntiān bù hǎohǎo gōngzuò, míngtiān gōngzuò dōu nánbǎo. [Pinyin]

   If you don't work hard today, you may not have a job to come back to tomorrow.

2. behaving oneself

好好

1. very good; very well
2. in perfectly good condition

好好

1. (chiefly Cantonese) Used other than figuratively or idiomatically: see 好,‎ 好: very good; excellent

   今日天氣好好。 [Cantonese, trad.]
   今日天气好好。 [Cantonese, simp.]

   gam¹ jat⁶ tin¹ hei³ hou² hou². [Jyutping]

   Today's weather is excellent.

   今天天氣好好。／今天天气好好。  ―  Jīntiān tiānqì hǎo hǎo.  ―  Today's weather is so good.

   呢排生意真係好好。 [Cantonese, trad.]
   呢排生意真系好好。 [Cantonese, simp.]

   ni¹ paai⁴ saang¹ ji³ zan¹ hai⁶ hou² hou². [Jyutping]

   Business has been booming lately.