English ⇄ Russian +

trained in stresses
gen.	обученный тому, как (They should also be trained in how to treat patients with dignity and respect. Alexander Demidov); обученный как (They should also be trained in how to treat patients with dignity and respect. Alexander Demidov)
math.	овладевший
train smb in smth
gen.	обучать кого-л. (чему-л., также train on thefreedictionary.com)

trained in : 43 phrases in 15 subjects

Art	1
Artificial intelligence	5
Aviation	1
Economics	1
Education	1
Energy industry	2
General	14
Horse breeding	1
Intelligence and security services	1
Makarov	7
Medical	5
Military	1
Psycholinguistics	1
Religion	1
Scientific	1