The synthetic method, main properties and application of alkyl indican has been introduced.本文介绍了烷基糖苷的合成方法, 主要性能和用途.This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reacta...
A butcher becomes a Buddha the moment he drops his cleaver.放下屠刀,立地成佛.They are witty, cleaver and gifted, stern and kind, boastful and shy.他们机智聪明或富有天赋 、 严厉或善良 、 自负或害羞....a meat cleaver.剁肉刀In fact, a cleaver is a class of ...
Heavy thundery rain fell throughout Thursday.星期四下了一整天的雷暴雨。Thundery weather is forecast.天气预报说会有雷雨。The weather had turned warm and thundery overnight.天气一夜之间就转暖，而且雷声阵阵。...
Send a cheque for £18.99 plus £2 for postage and packing.请寄上18.99英镑的支票，外加2英镑的邮资和包装费。Proof of postage will not be accepted as proof of receipt.邮资单据不能当作收据。For foreign orders postage is extra.国外订单邮费另计。...