他到拐角處放慢了速度。
You have to gear down when you drive uphill.

上坡行駛時必須換慢擋。 gear sth ? down
The courses have been geared down to lower ability of students in these special classes.

在這些特殊班里,由于學生能力低,課程的難度已降低了。

我們必須使產品數量適合公眾要求的水平。
We have to gear our lives to the new changes.

我們必須使自己的生活適應新的變化。
Education should be geared to the children's needs and abilities.

教育應適應兒童的需要和能力。

車開得足夠快時,你就能換擋加速。 gear sth ? up
The directors decided to gear the factory up for increased production, by bringing in new machine.

為了適應增產的需要,董事們決定引進新機器。 gear up
The Department is gearing up for increased intake of students.

這個系正在為擴大招生做好準備。 gear sb/sth ? up
The party is all geared up for the forthcoming election campaign.

該黨為即將來臨的競選活動已完全做好了準備。
I was geared up to have an argument about it and then she said it didn't matter anyhow.

我已準備好跟她辯論那事,可是她卻說不管怎樣都沒什么關系了。