Once trapped addiction, life difficult to extricate themselves.
一朝陷毒瘾,一生难自拔。
Black holes are so powerful that matter and even light cannot get out once trapped.
黑洞是如此强大,以至于问题,甚至轻不能摆脱一旦被困。
These are globules of once-molten rock trapped inside crystals in the rock.
这些源自熔岩的球状岩石被包裹在橄榄石晶体里。
Oil companies use CO2; once pumped down, it is trapped there.
石油公司一般使用二氧化碳,一旦被打入井下,二氧化碳便会留在井底。
Oil companies use CO2; once pumped down, it is trapped there.
石油公司一般使用二氧化碳,一旦被打入井下,二氧化碳便会留在井底。
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