Keep doing something even if it’s hard.
それが難しくても続けてください。 (tsuzukeru)
"Learning English takes time, so stick with it."
"英語を学ぶのには時間がかかりますので、それを続けてください。" (Akiramenai de, mokuhyō ni tōtatsu suru made sore o tsuzukete kudasai.)
to perform one's assigned tasks or responsibilities
a sudden brilliant idea or solution
a way of asking someone what they are thinking about
to have a burst of energy after feeling tired
to repeat a mistake despite knowing it’s wrong
deeply in love