had toughened
toughen
- Examples
Essentially, the stimulation of the macrophages' CB2 receptors had toughened up their overall resistance to the infection. | Básicamente, la estimulación de los receptores CB2 de los macrófagos había aumentado su resistencia general a la infección. |
Morihei over the previous years had toughened his skull by pounding it against a stone slab a 100 times each day. Morihei was in Manchuria for 18 months but apparently never saw action. | Morihei en los últimos años ha templado su cráneo por golpear contra una losa de piedra a 100 veces cada día.Morihei fue en Manchuria durante 18 meses, pero al parecer nunca vio acción. |
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