China and the United Nations | China Uncensored https://www.youtube.com/watch?v=mHjhgeyhuKk 17:27 I don't know that part for a fact. その辺は承知していないが、、、
Access to History - Blackbird: The Fastest Spy Plane (Extended Cut) - SR-71
https://www.youtube.com/watch?v=kAIC6-HAlxk 0;47 we know for a fact that many executions take place in Saudi Arabia after grossly unfair trials. サウジでは公平な裁判が受けられないまま大勢の人が処刑されているのは周知の事実だ。
Headhunting: Saudi Arabia hiring executioners, beheading rates soar
https://www.youtube.com/watch?v=X6EqxT5YmdE 22:28 we know for a fact that they are back here somewhere. ねずみがこの辺に戻ってきたのは確かなことだとわかる。
Common Rats are Growing to Enormous Size (DOCUMENTARY)
練習問題解答
a-5275 know personally for a fact
a-8300 knew for a fact