A few days later, a teacher said to me that some Chinese mothers spoke German rather than their native language with their kids, but their pronunciation and grammar was flawed and their kids ended up with poor Chinese and German skills.
的確，日後就有老師對我說，有些媽媽不跟小孩講中文母語，反而跟著講德文，但是媽媽的發音與語法都不正確，反而讓小孩的中文與德文二者皆學不好。