1.a series of 一系列的

The deal ended after a series of rancorous disputes.

經過一連串充滿敵意的爭吵，該交易泡湯了F2M5PsP=ZX@EJvOMs。

2.galactic center 銀河系中心

Regions of the galaxy that are rich in heavy elements generally, such as the galactic center, have higher carbon-to-oxygen ratios.

在宇宙里一些含有大量重元素的地區如銀河系中心里，一般都有較高的碳氧比例;U=#4M,,1t8j2M。

3.hierarchy 層級，等級制度

Like most other American companies with a rigid hierarchy, workers and managers had strictly defined duties.

像大多數其他等級制度森嚴的美國公司一樣，工人和管理人員都有嚴格界定的職責OQ[|m^V.OgJ.。

4.absentee 缺席者

He has already voted by absentee ballot.

他已經通過缺席投票的方式投了票bri93e]7~[5!kb1lYl。