quartering
n. 四等分；四分法
adj. 成直角的；四等分的
v. 把……四等分（quarter 的 ing 形式）
例句
He swam quartering upstream, but still was swept downward rather faster than he had expected.
他向上游游去，但还是被水冲了下去，流速比他预料的要快得多。
When he had pulled a mile above the village, he started quartering across and bent himself stoutly to his work.
当他划到离村子一英里的地方时，他开始全力以赴，径直向对岸划去。
He swam quartering upstream.
他向上游游去。
