be sure about 对…有把握;确信 be worried about 为…而担心,忧虑 18个常用“be+形容词+for”结构 be anxious for 渴望;担忧 be bad for 对…不利;对…有害 be bound for 前往 be celebrated for 因…而著名 be convenient for 对…方便,在…附近 be eager for 渴望 ...
2. be about to do sth… when 正要做某事……突然…… eg. I was about to go shopping when it suddenly began to rain. /我刚要出去买东西,天就突然下雨了。 3. by accident / by chance / accidentally 偶然地 4. come across sb 偶然遇见 5. act on sth 依……行...
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