How had Hepzibah—grim, silent, and irresponsive to her overflow of cordial sentiment—contrived to win so much love?

Hepzibah——酷、沉默、对她满溢的亲切情感反应迟钝——是如何设法赢得如此多的爱的？

So exposing these bacteria to inefficient doses or incomplete doses of antibiotics only teases the bacteria in a way, and it allows it to develop mechanisms to become irresponsive to these antibiotics.

因此， 将这些菌暴露于不充分或不完全的抗生素剂量， 某种程度上只是挑菌，使其有机会发展出对这些抗生素产生抗药性的机制。