英语 ⇄ 俄语 +

have yet to be 强调
一般	так и остаться не (The Agreement was signed by the UK in 2003 and the USA in 2004, but has yet to be signed by Canada or France. Alexander Demidov)

have yet to be : 7 短语, 2 学科

一般	6
马卡罗夫	1