百万兆; 万亿,兆 7kCntrE5vE:FEl E5nAlEdVip
adj.有争议的
1. the best will:最好的愿望
3. scientists still have a few tricks叩their sleeves:科学家们仍然有些不为人所知的招数。 have something up ones sleeve是英语成语,意思是:to have a secret idea or plan,有锦囊妙计,有所保留的,秘而不宣的谋略或计划,例如:If this trip doesnt work out Ive still got a few ideas up my sleeve.
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