Indeed the most industrious blacks-such as Bertina's son, labouring in harm's way at Costco-are likeliest to expose themselves and succumb to the virus.

事实上，大多数勤劳的黑人——比如伯蒂娜的儿子就在好市多工作并身处危险中——最有可能暴露在病毒之下，并屈服于病毒。