1. The course consists of ten core modules and five optional modules. 这门课程包括十个必修单元和五个选修单元。
2. The G-222 aircraft, which were built between 1977 and 1985, are receiving avionics upgrades, while two will also be given sound-proof, VIP transport modules. G-222型飞机是在1977年至1985年间建造的，目前正在接受航空电子设备升级，其中两架还将配备隔音的贵宾运输模块。
3. The most complex engineering project ever attempted has created an enormous set of interlinked modules that orbits the planet at more than 27,000 kilometres per hour. 有史以来最为复杂的工程项目创造了一组巨大的相互连接的模块，其以每小时27000公里的速度绕地球运行。
4. Its modular architecture allows modules to be swapped in and out depending on the processor and operating system. 它的组件结构使得各组件可以依靠处理器和操作系统进行进出交换。
