Tongue muscles'training is of great importance in learning any foreigh language.
口腔肌肉训练在学习任何语言时都是非常重要的。
Rivers need a spring.
大河要有源头。
When a thief was caught on the premises of large jewellery store on morning, the shop assistants must have found it impossible to resist the temptation to say 'it serves him right.