他耐心等待了几年，终于等到了投资的最佳时机。

Tā nàixīn děngdài le jǐ nián, zhōngyú děng dào le tóuzī de zuìjiā shíjī.

He waited patiently for several years and finally waited for the best time to invest.

如果你觉得时机不成熟，就再观察一段时间。

Rúguǒ nǐ juéde shíjī bù chéngshú, jiù zài guānchá yí duàn shíjiān.

If you feel the timing is not ripe, then observe for a while longer.

现在不是讨论这个问题的好时机。

Xiànzài bú shì tǎolùn zhè gè wèntí de hǎo shíjī.

Now is not a good time to discuss this issue.