bang one's head against a wall
[口语]试图做不可能成功之事，白费气力，枉费心机；枉费心机，以头碰壁，试图干不可能实现的事
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- unceremoniously adv. 随便地；唐突地
- locksmith n. 钳工；修锁工；锁匠
- washtub n. 洗衣盆
- violent adj. 暴力的；猛烈的
- lor int. <英口>上帝！天啊！
- cryptography n. 密码学；密码使用法
- foreground n. 前景；最显著的位置
- life assurance n. [保险] 人寿保险；（保险公司付给的）[保险] 人寿保险金；（被保险人缴纳的）[保险] 人寿保险费
- croft n. 小田地，小农场 n. (Croft)人名；(英、德)克罗夫特
- girlishly adv. 少女似地
- eat vt. 吃，喝；腐蚀；烦扰 vi. 进食；腐蚀，侵蚀
- commitment n. 承诺，保证；委托；承担义务；献身
- cruciate adj. 十字状的，十字形的
- isobutane n. [有化] 异丁烷
- borrowing n. 借款；借用 v. 借入；采用（borrow的ing形式）
- alcohol n. 酒精，乙醇
- crosshair n. 十字；十字丝
- churlish adj. 没有礼貌的；脾气暴躁的
- obeisance n. 敬礼；尊敬
- Eldorado n. 黄金国
考试词汇表
- liquid fertilizer applicator
- liquid filled stomach method
- liquid fluidized bed reactor
- liquid flushing installation
- liquid for composite filling
- liquid for self curing resin
- liquid for self-curing resin
- liquid helium storage vessel
- liquid hourly space velocity
- liquid hydrocarbonceous fuel
- liquid inelastic deformation
- liquid injection molded tire
- liquid injection molded tyre
- liquid level inspection cock
- liquid liquid chromatography
- liquid metal breeder reactor
- liquid metal coolant reactor
- liquid metal heat convection
- liquid moderator level meter
- liquid nitrogen preservation
