他歪戴着帽子。

He wore his hat ___at ___an ___angle.

船以35度角陷入泥中。

The boat settled into the mud ___at ___a 35 degree ___angle.

我需要将设备倾斜放置才能工作。

I needed to tilt the unit ___at ___an ___angle for it to work.