don't mind; be careless; be neglectful of; be negligent; care naught; don't care a fig; don't give a rip.; not bother oneself in the least; not care at all; not to care a straw [feather; stiver; snap; cuss; farthing]; not matter a farthing; pay no attention to; take no notice of; that's nothing to sb.
毫不气馁: without flagging 短语和例子尽管实验几次都失败了, 他们仍毫不气馁地继续进行。 despite numerous failures, they continued to conduct the experiment without flagging
毫不掩饰: not mince matters; undisguisedly; make no secret of
毫不在乎: not to care a snap [pin; damn; dime; hang; curse; cuss; farthing]; completely unperturbed; disregard…; do not mind or care at all; make nothing of…; not at all perturbed; not care at all;
