make tough or tougher
| 一般时 | ||
| 一般现在时 | ||
| I, you, we, they | toughen | |
| he, she, it | toughens | |
| 一般过去时 | ||
| I, you, he, she, it, we, they | toughened | |
| 现在完成时 | ||
| I, you, we, they | have toughened | |
| he, she, it | has toughened | |
| 过去完成时 | ||
| I, you, he, she, it, we, they | had toughened | |
| 一般将来时 | ||
| I, you, he, she, it, we, they | will toughen | |
| 将来完成时 | ||
| I, you, he, she, it, we, they | will have toughened | |
| 进行时 | ||
| 现在进行时 | ||
| I | am toughening | |
| he, she, it | is toughening | |
| you, we, they | are toughening | |
| 过去进行时 | ||
| I, he, she, it | was toughening | |
| you, we, they | were toughening | |
| 现在完成进行时 | ||
| I, you, we, they | have been toughening | |
| he, she, it | has been toughening | |
| 过去完成进行时 | ||
| I, you, he, she, it, we, they | had been toughening | |
| 将来进行时 | ||
| I, you, he, she, it, we, they | will be toughening | |
| 将来完成进行时 | ||
| I, you, he, she, it, we, they | will have been toughening | |
The UN announced its intentions to toughen sanctions still further.
联合国宣布了要进一步加强制裁的意图。
The government wants to toughen (up) the existing drug laws/controls.
政府想要加强现有的有关毒品的法律／对毒品的控制措施。
His time in the army certainly toughened him up.
军旅生涯确实使他变得更加坚强。
Car windows are usually made from toughened glass.
汽车车窗通常是由钢化玻璃制成的。
Amid toughening competition in the market, many firms are going out of business.
由于市场竞争愈趋激烈，许多公司只好歇业。
使强壮,困难,坚强起来,变得坚强
钢化玻璃
残肢韧化
增强增韧
只为锻炼自己
硬着头皮
锻炼什么
锻炼
困难，使强壮
词根：tough
adj.tough艰苦的，困难的；坚强的，不屈不挠的；坚韧的，牢固的；强壮的，结实的
adv.tough强硬地，顽强地
toughly固执地；强硬地
n.tough恶棍
toughness[力] 韧性；强健；有粘性
vt.tough坚持；忍受，忍耐