Since they have had children, they rarely go out. 
Từ khi họ có con, họ ít khi ra ngoài. * 097 like: ít khi → →
rarely, seldom ☊ ít khi ☊ 
ít khi seldom + (infrequently, rarely) ☊ ít khi Since they have had children, they rarely go out. Từ khi họ có con, họ ít khi ra ngoài. * 097