ngay khi 
as soon as, just, right at the time (when) [ ngay ] : immediately, at once, right away; to be straight, righteous, honest, exact
[ khi ] : occasion, time (when something happens), when, at the time of, if
Most Common Compounds Set 1:
ngay khi Most Common Compounds Set 2 :
Trời bắt đầu đổ mưa to ngay khi tôi bước ra khỏi cửa . |
