runnel

• n. 小河；沟渠

run,流淌，-el,小词后缀。引申词义小河，小溪。

runnel

runnel: see run

runnel (n.)

"rivulet," 1570s, in Hakluyt, alteration of Middle English ryneil, from Old English rinelle, rynel, a diminutive of ryne "a stream" (see run (n.)) with -el (2).

1. They used waterproof cement to prevent water from seeping through the roof of the runnel.

他们用防水水泥来防止水从屋顶的排水通道里渗透.

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