Ken gave up smoking two years ago. He'd been smoking for thirty years.
兩年前肯戒了煙，之前他抽了三十年煙。
英語語法突破 200 句
過去完成進行時
?? 句中詞匯解析
從本句中提取的重要詞匯
n. 三十;三十個;三十年代;三十的記號;
adj. 三十的，三十個的;
num. 三十;三十個;
?? thir=three三+ty十 → 三十
"There are thirty people in the classroom, counting the teacher."
把老師算上,教室里有30個人.
smoking
['sm?uki?]
n. 吸煙，抽煙;
v. 冒煙( smoke的現在分詞);抽煙;用煙熏制;吸（煙）;
"Smoking is a causative factor in several major diseases."
抽煙是引起幾種嚴重疾病的病因。
近義：nicotinism, aspersion, fumigation, smoggy, smoky, fuming
v. 給予，贈送( give的過去式 );（與名詞連用描述某一動作，意義與該名詞相應的動詞相同）;供給;交給;
"The boss gave him the push due to his careless work."
由于他工作不細心,老板解雇了他.