用: 40分钟跑完全程 run the course in 4 ...丸: ball; pellet抛光用丸粒: burnishing ball用完: drain; given out; run down; run out of sth; run short; rundown; use up; used up; wear-out用弯边法使两个板料连接;接缝: seaming用完,耗净花完: use up用弯边法使两个板料连接: seaming用完,花完: use up用外皮色: overcrust用完,用尽,耗尽: run out of用外皮覆盖: crust用完,完成: finish up用外壳包;硬壳状物: incrustation