Biochron
生物年代, 較短時期的化石, 生物時
??? 情景例句
OK, let me get my wallet and we'll take off.
好，讓我拿一下錢包，我們就走。
To fall
墜下，掉下
the total absence of fishing boats around the oil rigs.
鉆井平臺周圍根本沒有捕魚船只。