seventh evening of the seventh month (lunar calendar) (when the herd boy and the weaving girl are supposed to meet) 17 七夕 [-] qīxī (seventh-evening) seventh evening of the seventh month (lunar calendar) (when the herd boy and the weaving girl are supposed to meet): ~就是中国的情人节. The seventh evening of the seventh month (lunar calendar) is Chinese Valentine’s Day. '093 Time within one day 一天以内的时间 (yī tiān yǐnèi de shíjiān)
When on Earth! 37 猴年马月 [--馬-] hóuniánmǎyuè (monkey-year-horse-month) When on Earth!: 不知道~才能住上自己的房子. I don’t know when on Earth I’ll be able to live in my own house. || 不知要等到~. I don’t know how long I’ll be waiting. '289 Prepositions, space and time 时空介词 (shíkōng jiècí)
by the time, when 9 等到 [-] děngdào (wait-to) by the time, when: ~九点以后, 你就可以 唱歌了. By nine o’clock, you can sing. || ~你生日那天才能打开. You can’t open it until your birthday. '289 Prepositions, space and time 时空介词 (shíkōng jiècí)
when 10 当 [當] dāng (when) when: ~他上小学的时候就对物理 (wùlǐ) 非 常感兴趣. He was very interested in physics when he was in primary school. || ~你长大后才能明白这些道理. You cannot understand those truths until you grow up. 815 '298 Conjunctions, conditional 条件 (tiáojiàn)
[used correlatively with才] only if, only when 3 除非 [-] chúfēi (except-otherwise) [used correlatively with才] only if, only when: 这件事谁都处理不了, ~请她来. Nobody can handle this thing unless he is invited. || 我的工资根本不够花, ~再打一份工. My salary is not enough, unless I have another job. '