没来由: without any cause; for no reason; without rhyme or reason
毫无惧色: show no sign of fear; maintain a bold front; be not at all afraid; never changed colour; without the least sign of fear 短语和例子石油工人在困难面前毫无惧色。 the oil workers showed no sign of fear before th
毫无可取: having not the slightest good point; not a single merit; totally worthless
毫无价值: not worth a straw [snap; rush; damn; farthing]; good for nothing; it is of no worth.; trashy; valueless 短语和例子他的建议毫无价值。 his suggestion is valueless