haṁsau hradaṁ viśataḥ

 The Sanskrit phrase "haṁsau hradaṁ viśataḥ" 

is written in Devanagari as: हंसौ ह्रदं विश्वतः

The phrase "haṁsau hradaṁ viśataḥ" is a Sanskrit expression 

that can be broken down as follows:

1. haṁsau – dual form of haṁsa, meaning “two swans”.
2. hradaṁ – accusative singular of hrada, meaning “lake”.
3. viśataḥ – perfect participle, meaning “entered” or “immersed”.

Thus, the literal translation is:

"The two swans entered the lake."

Contextual Explanation:

• The dual form haṁsau indicates exactly two beings (swans), 
• a common nuance in Sanskrit grammar where dual, singular, 
• and plural are distinctly marked.
• The word hradaṁ denotes a body of water, specifically a lake, 
• consistent with natural imagery in classical Sanskrit literature.
• viśataḥ is the past/perfect participle of the root viś, “to enter” 
• or “to immerse,” denoting completed action.

Syntactic Structure:

• Subject: haṁsau (two swans, nominative dual)
• Object: hradaṁ (lake, accusative singular)
• Verb/Predicate: implied via viśataḥ, “entered”

Therefore, in English Sanskrit translation framework, the sentence is:

$\text{ha}\dot{\text{m}}\text{sau hrada}\dot{\text{m}}\text{ vi}\acute{\text{s}}\text{ataḥ}\Rightarrow \text{"The two swans entered the lake."}$

This type of phrase is typically encountered in poetic or mythological 

Sanskrit prose and poetry, often depicting idyllic natural scenes, 

such as in Purāṇic literature or classical kāvya.