TCBYkylie

2# shehboy
it seem like no one understood that what's the meaning of your pose, anyway thanks for your correctional pose.

TCBYkylie

4# k5k5www
No, you had totally misunderstood ! The meaning of "....the sale of the twin-engine Su-35s...." doesn't mean that Russia had sold the engine of Su-35 to China. In this case, the word "twin-engine" isn't a noun but adjective. The effect is to emphasize that Su-35 is a twin-engine air fighter. If we want to say that the engine of Su-35 been sold to China, it should be "....the sale of the Su-35's twin-engines....".