藠头（有人叫茭头）一种生长在我国南方的葱属植物的蔬菜，也叫薤头，礼貌是有很多年没有吃了。
藠头适应性强，性喜凉爽，生长适宜温度为15～19℃，30℃以上则休眠越夏，10℃以下生长缓慢。
11.The art
of public Speaking(参考译文：公共演讲的艺术)
1.The need for effective public speaking will almost certainly
touch you sometime in your life.When it does,you want to be
ready.But even if you never give another speech in your life,you
still have much to gain from studying public speaking.Your speech
class will give you training in researching topics,organizing your
ideas,and presenting yourself skillfully.The training is invaluable
for every type of communication.
1.在你生活的某个时刻，几乎必定需要做某种有影响力的公开演讲。当这个时刻来到时，你希望自己十分有把握。但是，即便你从未发表过一个演讲，你仍然会从学习公共演说中获益良多。你的演讲课将会在研究主题、组织思路、和表现技巧方面对你进行训练。这种训练对任何类型的交流都是非常宝贵的。
2.There are many similarities between public speaking and daily
conversation.The three major goals of public spe
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