I. trail [treıl] 动词 不及物动词
| I | trail |
|---|---|
| you | trail |
| he/she/it | trails |
| we | trail |
| you | trail |
| they | trail |
| I | trailed |
|---|---|
| you | trailed |
| he/she/it | trailed |
| we | trailed |
| you | trailed |
| they | trailed |
| I | have | trailed |
|---|---|---|
| you | have | trailed |
| he/she/it | has | trailed |
| we | have | trailed |
| you | have | trailed |
| they | have | trailed |
| I | had | trailed |
|---|---|---|
| you | had | trailed |
| he/she/it | had | trailed |
| we | had | trailed |
| you | had | trailed |
| they | had | trailed |
单语范例（未经PONS编辑处理）
Note that the scale factor is 20/2, which allows the trailing zero to be dropped from all values inside the subroutine.
en.wikipedia.org Notable problems that developed with the 1500 included separation of the semi-trailing arm mounts from the body, rear axle failure, and gearbox problems.
en.wikipedia.org Despite its name, most of its wings are dark slaty, though in flight a white trailing edge is visible on the secondaries.
en.wikipedia.org By the mid-nineteenth century the "bonnet de police" had become a true flat cap with no trailing crown.
en.wikipedia.org But unable to handle a full-court press, they gave the lead away entirely, trailing by one early in the fourth quarter.
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