工程师建议把管道直径再扩一点,否则雨季仍会积水。Gōngchéngshī jiànyì bǎ guǎndào zhíjìng zài kuò yìdiǎn, fǒuzé yǔjì réng huì jīshuǐ.The engineer suggested enlarging the pipe diameter a little more; otherwise water will still accumulate during the rainy season.
老板打算把店面扩大一倍。Lǎobǎn dǎsuàn bǎ diànmiàn kuòdà yí bèi.The owner plans to double the size of the shop.
这条路太窄了,应该再扩宽一些。Zhè tiáo lù tài zhǎi le, yīnggāi zài kuòkuān yìxiē.This road is too narrow and should be widened a bit more.