他们为他们的孩子计划好一切，为他们做所有的决定，不让他们自己探索，以免他们犯错或受伤。
They plan everything for their children, make all the decisions for them, and do not allow them to explore on their own in case they make mistakes or get hurt.
不一定：长远来看，一个以免费为开端的产品对这个社会性媒体巨头来说更加有价值。
Not necessarily: in the long term, a starting price of free may make better business sense for the social media giant.
使用以免疫为基础的试剂，如T细胞和治疗用抗体，或修饰病人的免疫系统使其更好的抵御疾病的方法运用。
The use of immune-based reagents such as T cells and antibodies for therapeutic purposes, or the use of methods that will modify a patient’s immune system to better fight disease.
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