Russia asks students to join the army now . The plan targets college and tech school youth . Officials say drone units are safer jobs . Some students who signed up have already died . A young man died a week after training . Another student signed up and died fast . BBC counts over 230,000 Russian soldiers dead . Big money promises may not be guaranteed . Struggling students are often targets . War safety promises are often not true .

Phrases:

front line . 前線 . higher than . 高過 . signed up . 簽約 .