I told you three times to check the undercarriages.

我跟你说了三次要检查好公母。

The reception committee was needed because the craft, which weighs less than 75kg, lacks an undercarriage -or, indeed, anything else that would add unnecessary weight.

于这架重量不足75公斤的航空器没有着陆装置，因此需要接待委员会的入—确实，任何其他装置都会给这架无人机增加不必要的重量。

Then a bit of luck: As the car raced toward the edge, its undercarriage got stuck on the cement lip of the embankment ledge, stopping it cold.

汽车冲向边缘时，它的底盘卡在了路堤边缘的水泥边缘上，车停了下来。

This one's like licking a beet's undercarriage.

这瓶感觉像舔甜菜根的起落架。