I. tread <过去式 trod; 过去分词 trodden or trod> [tred] 动词 trans
II. tread <过去式 trod; 过去分词 trodden or trod> [tred] 动词 不及物动词 (on)
III. tread <过去式 trod; 过去分词 trodden or trod> [tred] 名词
| I | tread |
|---|---|
| you | tread |
| he/she/it | treads |
| we | tread |
| you | tread |
| they | tread |
| I | trod / 美 也 treaded |
|---|---|
| you | trod / 美 也 treaded |
| he/she/it | trod / 美 也 treaded |
| we | trod / 美 也 treaded |
| you | trod / 美 也 treaded |
| they | trod / 美 也 treaded |
| I | have | trodden / trod |
|---|---|---|
| you | have | trodden / trod |
| he/she/it | has | trodden / trod |
| we | have | trodden / trod |
| you | have | trodden / trod |
| they | have | trodden / trod |
| I | had | trodden / trod |
|---|---|---|
| you | had | trodden / trod |
| he/she/it | had | trodden / trod |
| we | had | trodden / trod |
| you | had | trodden / trod |
| they | had | trodden / trod |
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单语范例（未经PONS编辑处理）
The brown spores are released into the air; this process is often hastened by rain, or by being trodden on by cattle.
en.wikipedia.org These islands doubtless have never been trodden by human footsteps, and still belong to the regions of the unexplored.
en.wikipedia.org Far from plodding along the trodden path, she courageously explores new areas.
en.wikipedia.org The vision of this institute was to provide quality education to the down-trodden and the underprivileged segments of society.
en.wikipedia.org The tread pattern is characterized by the geometrical shape of the grooves, lugs, voids and sipes.
en.wikipedia.org