英语语法分析

Gs means "global substitution."

gs表示“全局替换[global substitution]”。

Each strand of DNA has a series of Gs, as, ts and Cs attached to its backbone.

每条DNA链的主干上都有一系列g、A、T、C。

Other herbs that may help memory include “the three Gs”: ginko, ginseng, and gotu kola.

其他可以帮助提高记忆力的草本植物包括：银杏、人参和雷公根。