英语语法分析

Plug stopcocks with sterile plugs.

在三通开关上塞上无菌塞子。

Plug stopcocks with sterile plugs .

在三通开关上塞上无菌塞子。

Despite rising prices, Saudi Arabia has so far been reluctant to turn its stopcocks.

尽管价格上涨，沙特到目前为止还不太愿意提高产量。