before long; eventually
不久；最终
incidentally; parenthetically
顺便提一句；插上一句
where's Hector, by the by?.
顺便问一句，赫克托在哪？。
on the whole; everything considered
总的说来；大体上
mammals have, by and large, bigger brains than reptiles.
总的说来，哺乳动物的脑比爬行动物大。
alone
单独地
living in Farley Court by himself.
他独自住在法利大楼。
unaided
独自地
the patient often learns to undress by himself.
病人常要学习自己脱衣服。
the patient often learns to undress by himself.
病人常要学习自己脱衣服。