英 [ˈtʌfn] 美 [ˈtʌfn]
vt. 使……坚韧；使……顽固
vi. 变坚韧；变顽固
第三人称单数toughens
现在分词toughening
过去式toughened
过去分词toughened
toughen /ˈtʌfən/ [ toughening toughened toughens ]
及物动词 If you toughen something or if it toughens, you make it stronger so that it will not break easily. 使坚硬
Months of walking barefoot had toughened his feet.
数月的赤脚行走已使他的双脚变得坚硬。
及物动词 If a person, institution, or law toughens its policies, regulations, or punishments, it makes them firmer or stricter. 加强 (政策、规章或惩罚)
Talks are under way to toughen trade restrictions.
加强贸易限制的会谈正在进行中。
动词词组 Toughen up means the same as . 加强 (政策、规章或惩罚)
The new law toughens up penalties for those that misuse guns.
这部新法律加强了对滥用枪支者的惩处。
及物动词 If an experience toughens you, it makes you stronger and more independent in character. (经历) 使坚强
They believe that participating in fights toughens boys and shows them how to be men.
他们认为参与打架可以使男孩们变得坚强，并且教会他们怎样成为男子汉。
动词词组 Toughen up means the same as . (经历) 使坚强
He thinks boxing is good for kids, that it toughens them up.
他认为拳击对孩子们有好处，使他们变得坚强。
make tough or tougher
This experience will toughen her
增韧-引用次数：26
Polyester A and B can toughen PLA by melting state blend and modify PLA brittleness, but elongation at break was increased slightly.
增韧剂聚酯A、聚酯B与聚乳酸熔融共混可以改善PLA的脆性，断裂伸长率有少量增加。
参考来源柔性聚乳酸薄膜的研制
变坚韧(toughened), 此释义来源于网络辞典。
... 变秃deglabration 变顽固toughen 变微温tepefy ...
... [ suffering ] 磨砺;困难境况下的磨炼 [ toughen ] 锻炼人 [ torment torture suffering ] 比喻焦虑、痛苦 受折磨 ...
... 增援, 加强; 加固; 增加, 补充; 强化, 加深 { reinforce } 变坚韧; 变困难; 变健壮 { toughen } 使开化; 教化; 使文明 { civilize (Amer.) } ...
Talks are under way to toughen trade restrictions.
加强贸易限制的会谈正在进行中。
They jab tree trunks to toughen their hands and practice squatting with other students sitting on their shoulders to build the leg strength.
他们猛击树干来锻炼双手，练习蹲坐，让其他同学坐在他们的肩膀上锻炼腿部力量。
Nevertheless, researchers have discovered that a process long known to discolor and toughen foods may also contribute to age related impairment of both cells and tissues.
然而，研究人员发现，一个长期以来众所周知的使食物变色和变硬的过程也可能与年龄相关的细胞和组织损伤有关。
However,he said Washington needs to go further and toughen its stance or risk ruining the peace process.
VOA : standard.2009.11.18
In SERE training military personnel are subjected to many of the same techniques to toughen them up for possible capture by an enemy - and Ritz says SERE trainers were imported to the Guantanamo Bay detention facility.
VOA : standard.2009.04.17
But those who are easier graders than average will never feel guilty and toughen up.
而那些评分本来就比平均标准松的,根本不会觉得内疚，不会因此更严格。
死亡课程节选 : 耶鲁公开课
Maybe young women are afraid of being rejected, but they have to toughen up.
Mr Brown will also ruffle business feathers with his plans to toughen-up competition law.
Heavy-equipment manufacturer Caterpillar is eager to learn how to toughen up its bulldozers and tractors.