blue chalk

基本解释

We used blue chalk for photo clarity, but make sure that whatever color you use wipes off easily.
我们用蓝色粉笔照片的清晰度，但要确保无论您使用抹布颜色容易脱落。
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Your first suit should be either navy blue or gray, possibly with a light chalk stripe (like a pinstripe, but softer), and in an all-season, medium weight.
你的第一套该选海军蓝或者灰色，可能带着浅白色条纹那种（像细条纹，不过更柔和），四季皆宜，重量适中。
Non-toxic items that babies tend to put in their mouths and potentially swallow include crayons, pencils, chalk, water-based glues and paints, Blue tack, sun-tan lotions, bath oils and lipstick.
婴儿往往会将无毒性物品放入嘴里并可能吞食，这些物品包括：蜡笔，铅笔，粉笔，水性胶水和颜料，万能胶，防晒乳液，浴油和唇膏。