Bisethylxanthate
双黄原酸乙基酯
🗣️ 情景例句
with Admissions at Columbia University.
与Columbia大学的招生人员。
Martha will expect you to come by at six o'clock for dinner.
玛莎以为你在六点以前会来吃晚饭。
Then we can see Aswan without walking too much.
而且不必走太多路我们就可以观看到阿斯旺。