Correct
望洋兴叹
/ wàng yáng xīng tàn /
Strokes
Definition
lit. to gaze at the ocean and lament one's inadequacy (idiom)/fig. to feel powerless and incompetent (to perform a task)
Example
Definition
lament one's littleness before the vast ocean—bemoan one's insignificance in the face of something great; bemoan one's inadequacy in the face of a great task