屏气凝神

Explanation: Breath-hold: inhibition of respiration; your breath: concentrate. Describe the high concentration of attention, against the same. 　　Usage: Joint type; as the predicate attribute; describe the high concentration of attention 　　Source: Qing Liu E, "Travels," the second time: "The more singing lower, the lower the more detailed, I did not hear the sound gradually. Garden people breathless child, not to less." 　　Examples: More singing lower, the lower the more detailed, I did not hear the sound gradually. Children who are ~ garden, not to less. (Qing Liu E, "Travels," the second time) Thesaurus:  Time does not peep Park Garden