While OPC is not a cause of death, it can cause oral pain and make swallowing difficult.

虽然鹅口疮不会导致死亡，但却可能导致口腔疼痛，吞咽困难。

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Real black holes’ light-swallowing abilities make them notoriously difficult to observe directly, though their gravitational effects on their surroundings can be seen.

尽管能看到黑洞对周围的引力，但由于真正黑洞的噬光力而使直接观察黑洞异常困难。

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Up to 40 percent of patients given a common chemotherapy drug suffer from the painful sores known as oral mucositis, which can make eating and swallowing difficult.

接受普通化疗的患者中高达40%患有痛性口腔溃疡亦为粘膜炎，这能够产生咀嚼和咽食困难。

youdao

Real black holes' light-swallowing abilities make them notoriously difficult to observe directly, though their gravitational effects on their surroundings can be seen.

ECONOMIST: Black holes on a desktop

That proved to be a flop (even back in the day, our correspondent related to me how difficult the acquirer was to deal with) which Fosters, with all due awareness, compounded in swallowing Southcorp in 2005.

FORBES: Fosters Wine: Not Aging Well