大葱（学名：Allium.fistulosum L.var.gigantum Makino）为葱种下一变种，区别于分葱（小葱）变种与红葱（楼葱）变种。大葱植株地上部的外形很象洋葱。叶圆筒形而中空，它的叶鞘茎部包含成假茎，若行培土软化，便造成棍状的“葱白”。葱白是主要食用部分。
大葱烧鸭 Braised duck with scallions
大葱土豆汤 Potato and Leek Soup ; Potato and Scallion Soup
大葱疫病 phytophthora blight of green onion
大葱鸭 Farfetch'd
土豆大葱汤 Vichyssoise
有机大葱 Organic Welsh onion ; organic green onions ; Organic Leek
大葱炒牛肉 Onion fried beef ; Welsh onion fried beef
大葱叶霉病 Welsh onion heterosporium blight
大葱白色疫病 Welsh onion white tip
Collection 314 samples of citrus fruits, rice, three-colored amaranth, asparagus lettuce, green Chinese onion, French bean, hot pepper, wild cabbage and the soil, test the content of heavy metal Pb, Cd, Hg and As in these samples.
在重庆市各农产品的主产地,采集了柑桔果实、水稻、苋菜、莴笋、大葱、四季豆、辣椒、甘蓝及其土壤样品共314个,测定了样品中重金属铅、镉、汞、砷的含量。
参考来源 - 期刊学术社区Among the different systems,crop rotations of scallion-cucumber and maize-cucumber were the optimum patterns for soil improving.
大葱、糯玉米与黄瓜轮作对土壤的改良效果较理想。
参考来源 - 轮作和休茬对日光温室黄瓜连作土壤的改良效果·2,447,543篇论文数据，部分数据来源于NoteExpress
里面有羊肉片和大葱。
一位顾客一边嗅着大葱一边说，如果你把大蒜在你脚上擦一擦，你就可以在你的嘴里品尝它了。
One customer, sniffing a shallot, announced that if you rub a garlic on your feet, you can taste it in your mouth.
这道菜谱要把牛排放到白葡萄酒、大葱和骨髓酱里，我不确定为什么这本书会自己就翻到这一页来。
I'm not certain why this recipe for steak in a white wine, shallot, and bone-marrow sauce is where the book naturally opens to.
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