KET 在線
模擬測(cè)試
小程序在線模擬測(cè)試
PET 真實(shí)
考場(chǎng)模擬
OPFUN Talk萌課堂,專注青少在線語(yǔ)言啟蒙!——寰宇咨詢中心資訊網(wǎng)
上海 18761612306
As, when和while兩者都是連詞,但在某些前提下,三者也會(huì)有一點(diǎn)區(qū)別。 As, when or while 我們可以用as, when和while來(lái)表示“當(dāng)...同時(shí)發(fā)生的兩個(gè)事件: Another family arrived as we were leaving. When my father was out working
網(wǎng)站導(dǎo)航
熱點(diǎn)關(guān)注