self-study package

常见例句

双语例句

• There's also another human reason why it's difficult. Once you have bought a comprehensive self-study package, it requires enormous self-discipline to work through it.
  另外还有一个在于人的原因：一旦你买了一整套自学材料，你就得做到严格自律，持之以恒，仔细研读它们。
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