We coasted south america on our trip last winter .

我们去年冬天旅行时曾沿南美洲海岸航行。

The bicycle coasted down the hill .

自行车顺着山坡向下滑行。

The plane coasted down the runway .

飞机顺着跑道平稳滑行。

The sledge coasted down the slope .

雪橇沿着山坡向下滑行。

He coasted through his final exams .

他毫不费劲地通过了期终考试。