Regularity ought to be observed, as regularity is very conducive to health. 生活應遵守規律，因為規律對健康有益。
But in land-travel, wherein so much is to be observed, for the most part they omit it; as if chances were fitter to be registered, than observation. 但當其漫游于大陸，有諸多景象可觀(guān)之時(shí)，他們卻往往疏于著(zhù)墨，仿佛偶然之所見(jiàn)比刻意之觀(guān)察更適于記載似的。
A low-power, wide-angle telescope fixed to the body of a more powerful telescope and pointed in the same direction for initially locating an object to be observed. 尋星鏡一種低功率大視野的望遠鏡，附加在一臺較大的望遠鏡上，為開(kāi)始標出被觀(guān)察的物體位置而指向同一方向
Troop movements can be observed from space by a satellite. 藉助衛星可觀(guān)察到部隊的調動(dòng)。
