I don't know how long I can keep it

I don't know how long I can keep it up.

รอนาน

ผลลัพธ์ (อังกฤษ) 2:

I do not know how long I can keep it up. wait long.

ผลลัพธ์ (อังกฤษ) 3:

I don 't know how long I can keep it up.

waiting.