木炭和金刚石都是炭的同素异形物Charcoal and diamond are allotropes of carbon.炭的含量是百分之四.Its carbon content is 4 %.苯酚的催化氧化和炭的催化氧化可能遵循不同的反应历程.Phenol oxidation and catalyst - sorbent ignition may proceed bt different reaction mechanisms....
My gout troubles me so much these days.这些天,我的痛风病闹得很厉害.If you already have gout, these foods can trigger an acute attack.如已患痛风, 则这些食物可诱发痛风急性发作.This drug gives rapid relief to sufferers from gout.这药封痛风患者的止痛效果神速....
I gestured towards the boathouse, and he looked inside.我朝船库方向示意，他便往里面瞧了瞧。Sometimes, an entire boathouse is turned into a dwelling.有时, 整个船库都变成了一座寓所.The walls of the boathouse had been sapped by the waves.船屋的墙被海浪给挖空了....