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ditch 沟渠,沟渠

p>排水沟【drainage ditch】指的是将 a target"_blank href"
p>排水沟【drainage ditch】指的是将 a target"_blank href"p>排水沟【drainage ditch】指的是将 a target"_blank href"
p>排水沟【drainage ditch】指的是将 a target"_blank href"p>排水沟【drainage ditch】指的是将 a target"_blank href"
p>排水沟【drainage ditch】指的是将 a target"_blank href"drainageditchincountryside
drainageditchincountrysidep>截渗沟(seepage interception ditch)是指为拦截从外部向保护地区
p>截渗沟(seepage interception ditch)是指为拦截从外部向保护地区
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