彼らは敵が近づいてくるのを見ると警報を鳴らした。

Sentence Analyzer

English Translation

They sounded the alarm when they saw the enemy approaching.

Furigana

彼(かれ)らは敵(てき)が近(ちか)づいてくるのを見(み)ると警報(けいほう)を鳴(な)らした。

Romanji

Karera wa teki ga chikazuitekuru no o miru to keihō o narashita.

Words

彼ら (かれら)

they (usually male); them

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

敵 (てき)

opponent; rival; adversary; menace; danger; threat; enemy

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

近づく (ちかづく、ちかずく)

to approach; to draw near; to get close; to get acquainted with; to get closer to; to get to know

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

見る (みる)

to see; to look; to watch; to view; to observe; to look over; to look on; to assess; to examine; to judge; to look after; to keep an eye on; to take care of; to view (e.g. flowers, movie); to try; to try out; to see that...; to find that...

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

警報 (けいほう)

alarm; warning

鳴らす (ならす)

to ring; to sound; to chime; to beat; to snort (nose); to be popular; to be esteemed; to be reputed; to state; to insist; to complain; to fart (loudly)