有效的例句（有效在句子中的用法）

• What method is second to none? 什么样的方法最有效?
• Is that very old law still in force? 那项古老的法律仍然有效吗?
• Please supply a valid user password. 请提供一个有效的用戶密码。
• It appears that the new legislation doesn’t have any teeth, since there has been no improvement in working conditions. 新法规似乎不太有效，因为人们的工作条件没什么改善。
• Your problem lies in lacking efficient methods. 你的问题在于缺少有效的方法。
• In order to validate the agreement, both parties sign it. 为使协议有效, 双方在上面签了字。
• This warranty is good for one year after the date of the purchase of the product. 本保证书自购置此产品之日起有效期为一年。
• The government has already adopted effective measures against piracy. 政府已采取有效措施惩治盗版行为。
• The tests have been shown to be of dubious validity. 这些试验的有效性已显得令人怀疑。
• This railway ticket is valid for three days. 这张火车票的有效期是三天。
• He has a valid passport. 他的护照有效。
• Dark glasses are an effective shield against the glare. 墨镜能有效地遮挡强光。
• Discipline has sharpened them up. 纪律使他们更有效率了。
• achieving our success through effective teamwork 通过我们有效的合作取得成功
• The rule still stands. 本规则依然有效。
• This is an effective medium. 这是一种有效手段。
• a very strong laxative 极有效的导泄药
• The establishment of our GRE computer data has enabled us to come up with innovative tactics for doing well on the GRE. GRE电脑数据库的建立, 使我们有了新的策略来有效地应付GRE考试。
• I can’t claim infallibility for this method. 我不敢说这方法绝对有效。
• chemicals that are very ineffective in killing weeds 完全不能有效清除杂草的化学品