bum的一般过去时怎么拼写

bum的第三人称单数（三单）为：bums...

bum的现在进行时为：bumming...

bum的现在完成时为：bummed...

Can I bum a cigarette off you?可以向您要支烟吗?Why don’t you stop behaving like a bum and get this place cleaned up?你不要再像一个懒鬼的样子，赶紧把这地方收拾一下好吗？He looks like a bum who's been drowning his sorrows in sleazy dives.他看起来象个游手好闲之辈,...

bum的音标：bum的英式发音音标为：[bʌm]bum的美式发音音标为：[bʌm]...

Mind if I bum a cigarette?能给我一支烟吗？He knows you're getting a bum deal.他知道你在做一笔烂生意。John lost his job and went on the bum.约翰失业后过着流浪生活....

n.流浪者，屁股，狂欢作乐，笨蛋，废物vt.乞讨vi.流浪，闲荡adj.质量低劣的，无价值的，无价值的，残废的，很不愉快的...

bum的复数形式为：bums...

“共体”的拼音为：gòng tǐ...

n.铀钙矿...

lactophosphate的音标：lactophosphate的英式发音音标为：[læktə'fɒsfeɪt]lactophosphate的美式发音音标为：[læktə'fɒsfeɪt]...

尽管叫鱼贩子把比目鱼的鱼刺剔掉。Don't be afraid to ask your fishmonger to fillet flat fish.当时她正在用牙线剔牙。She was flossing her teeth at the time.剔了刺的鱼很容易烹制。The boned fish is so easy to serve....

estranediol的音标：estranediol的英式发音音标为：[estreɪni:'daɪəl]estranediol的美式发音音标为：[estreɪni'daɪəl]...

上四年级时，他频频旷课。In his fourth year he was truanting regularly.每天早上,老师都记下学生们到校 、 旷课以及迟到等出勤情况.Each morning the teacher marks the pupils present , absent or late.旷课的学生占百分之几?What percentage of the students were absent?...

“横轴”的反义词：纵轴。...

needy的音标：needy的英式发音音标为：['ni:di]needy的美式发音音标为：['nidi]...

geed的音标：...

Flavell的音标：...

dweller的复数形式为：dwellers...

hemiopic的音标：hemiopic的英式发音音标为：[hi:'maɪɒpɪk]hemiopic的美式发音音标为：[hi'maɪɒpɪk]...

Their subsistence comes from the sea.他们依赖海洋生活。Their main mode of subsistence is hunting.他们主要以打猎为生。They were living barely above the level of subsistence.他们的生活水平勉强在最低水平线以上。Many families are living below the level of subsi...

afoot的音标：afoot的英式发音音标为：[ə'fʊt]afoot的美式发音音标为：[ə'fʊt]...

v.（使）旋转( swivel的现在分词 )，在枢轴上转动，（把身子或脸等）转向另一方，转身...