不健壮 meaning in English

ill-thrift
unsoundness

In truth , she was far from robust , and the need of her body and mind was for strength . but she did not know it
事实是她自己一点也不健壮，她的身体和心灵都需要强力，可她并不知道。
Flash will be popular in data storage . the pattern of usb communication in this paper is mcu + usbcontroler , the studying of this pattern shows that it is difficult to keep transferring data for a long times . the process of communication is interrupted sometimes by some causes
通过对实验结果的分析表明，组合式的usb通信在本仪器的应用中存在通信的不健壮性，而用超大容量flash作为数据存储是非常理想。