九月的英文缩写是什么?upgrade的ING形式是什么?upgrade的ING形式要去掉E嘛?第三季度是用third season ? third quarter?

问题描述:

九月的英文缩写是什么?upgrade的ING形式是什么?
upgrade的ING形式要去掉E嘛?
第三季度是用third season ? third quarter?

Sep.
upgrading
the third quarter
season强调“季节性”,quarter强调“季度”.