I had to be really persistent and it was very hard work.
我必须非常坚持，这是非常艰难的工作。
Although PCBs have a low immediate toxicity, they are very persistent in the environment and accumulate in tissues over time.
虽然氯联苯没有很强的直接制毒性，但是它们能长期存留在环境中，并积存在人体组织里。
Non-persistent messages are processed in memory and are very fast, but may be lost in the event of a system failure.
非持久化的消息是在内存中进行处理的，速度很快，但可能会因系统故障而丢失消息。
They were very loud and persistent.
很大声，持续不断。
The performance of Business Events using both file store and data store using a remote DB2 database is very similar for both persistent and non-persistent messaging.
在储存持久化和非持久化消息时，BusinessEvents使用文件储存和使用基于DB 2数据库的数据储存实现的性能非常接近。
The abnormal meteorology resulted from severe drought and persistent high temperature, brought very bad influence to the Agriculture.
由于异常气象而形成的严重干旱和持续高温对农业生产造成了极其不利的影响。
Chronic fatigue syndrome (CFS) is a very common and disabling condition, in which people suffer from persistent symptoms of fatigue that are unexplained.
慢性疲劳综合征(简称CFS)是一种非常普遍及失能的状态，人们会持续出现不明原因的疲劳。
Love you let me heartache, I may be persistent, just that kind of perseverance is very beautiful, also very solemn and stirring!
爱你让我心痛，我也许执着，只是那种执着很美，也很悲壮！
Expression of pain are often very complex, can be expressed in persistent pain, or intermittent pain, and some patients also showed dull pain or tingling.
疼痛的表现也往往很复杂，可以表现为持续性疼痛，或间歇性疼痛，有的病人还表现为钝痛或刺痛。
Throughout China's very long history there has been a persistent theme of continuity and change - the former very tenacious, but the latter sometimes very drastic.
在中国漫长的历史中，一个永恒的主题是持续和变化——前者的力量很顽固，但后者有时非常激烈。
Enjoys communicating with people, integrated and persistent, with very good team spirit.
热衷于与人沟通，为人诚信，对于目标坚持不懈。有良好的团队精神。
First, initial conditions are very worrisome, including a very high and too persistent level of un- and under-employment.
首先，经济初始条件非常不利，失业人口和非充分就业人口居高不下。
When Confucius was very young, his father died, so the family began to decline. He developed a firm and persistent character owing to the early years' experience of frustrations.
幼年丧父，家道中落，早年的坎坷经历，造就了孔子坚毅执著的性格。
The selling beyond agreed area is one kind of marketing persistent ailment that is easy to be ignored, but has very strong antipersonnel force to the brand and enterprise.
所谓窜货，即渠道的跨区销售，是一种极易被忽视，但又对品牌和企业经营具有很强杀伤力的营销顽症。
I'm very determined, persistent and sometimes even stubborn.
我很坚定，毅力顽强，有时甚至固执己见。
On the road to pursue artistry, Lixun is a very persistent man with a free and easy heart.
在追求艺术的道路上，韩立勋是一个极为执着的人，但他又保持着洒脱的心态。
With a persistent spirit, Becky Sharp is very clear about her purpose and finally she succeede…
她有明确的目标和锲而不舍的精神；
The results of field experiments showed that chlorpyrifos 20CS was very effective and had long persistent control on peanut grup .
田间试验结果表明，20%毒死蜱微胶囊悬浮剂对花生田蛴螬防效高，持效期长。
Elegant, fruity and round, it is very persistent in the mouth.
酒体优雅，果香馥郁，口感圆润，回味颇为隽永。
Elegant, fruity and round, it is very persistent in the mouth.
酒体优雅，果香馥郁，口感圆润，回味颇为隽永。
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