这个赛车模拟器非常逼真，让我感觉像在真正的赛道上驾驶。

This racing ___sim is so realistic it feels like driving on a real track.

飞行员在飞行模拟器中训练紧急程序操作。

The pilot trained in a flight ___simulator to practice emergency procedures.

这两款手机的外形很相似。

The two phones look ___similar in shape.

这款游戏支持多人在线同时对战功能。

This game supports ___simultaneous multiplayer online battles.