您要查找的是不是：
- The dark clouds threaten rain. 乌云预示着将要下雨。
- The dark clouds threaten a big rain. 黑云预示着要下大雨。
- The lowering clouds threaten rain. 这阴霾的云层预示即将下雨。
- The dark clouds threatened a big storm. 乌云预示暴风雨的来临。
- The black clouds threatened rain. 乌云密布预示着将要下雨。
- The dark clouds were a guarantee of rain. 乌云是下雨的先兆。
- Look at the dark clouds! It's going to rain. 看那乌云,天要下雨了。
- Are the dark clouds a sign of rain? 乌云是下雨的征兆吗?
- Dark clouds threaten a heavy storm. 乌云预示着有一场风暴。
- The dark clouds suggest an impending storm. 乌云表明暴风雨即将来临。
- The dark clouds brought a threat of rain. 乌云预示着要下雨。
- The dark clouds announced the coming his return. 乌云是风雨欲来的前兆。
- The clouds threaten rain. 云预示有雨。
- The dark clouds [storm] will soon blow over. 乌云[风暴]不久就会散去[过去]。
- The moon was covered by the dark clouds. 月亮被乌云遮蔽了。
- Eg The clouds threaten rain. 云预示有雨了。
- If the dark cloud clears off,we'll go th the park. 如果天色转晴，我们就到公园去。
- The heavy clouds threaten rain. 乌云预示要下雨。
- The dark clouds suggested that it was going to rain. 乌云暗示着天要下雨了。
- The dark clouds finally dissipated. 乌云最后消散了
