开始: 1.(从头起; 着手进行) begin; start; initiate; commence 短语和例子开始生效 take effect; come into effect; 从头开始 start from the very beginning; 开始流行 come into vogue; 开始营业 commence business; 开始收集邮票 set about s
发生: 1.happen; occur; take place; arise; crop up; chance; befall; come off; come to pass; come about; come up; come what may; be set; turn up; bring to pass:2.germination; occurrence3.-gony; -p