attack, assail, assault, charge, beset

• germany began to attack the soviet union in 1941.
  德國在1941年開始進攻蘇聯(lián)。

• the enemy plane assailed our defence position.
  敵機不斷猛烈地攻擊我們的陣地。

• the enemy assaulted us at dawn.
  敵人在黎明時向我進攻。

• the cavalry charged to the front.
  騎兵猛烈向前線沖擊。

• in the swamp we were beset by mosquitoes.
  在沼澤地里, 我們受到蚊子的圍攻。

動詞 assail:

1. attack someone physically or emotionally
   同義詞：assault, set on, attack
2. launch an attack or assault on; begin hostilities or start warfare with
   同義詞：attack
3. attack in speech or writing
   同義詞：attack, round, lash out, snipe, assault

1. All sorts of problems assailed us suddenly.
   我們突然遇到各種各樣的難題。
2. He was assailed by his political opponent.
   他遭到政敵的攻擊。
3. She was assailed by doubts.
   她感到疑慮重重。

as.sail

v.tr.（及物動詞）
as.sailed,as.sail.ing,as.sails
To attack with or as if with violent blows; assault.
攻擊：攻擊或似猛烈打擊；襲擊
To attack verbally, as with ridicule or censure.See Synonyms at attack
攻訐：用語言攻擊，如嘲笑或責(zé)罵參見 attack
To trouble; beset:
使苦惱；困擾：
例句：
was assailed by doubts.
為疑惑而困擾

來源：
Middle English assailen
中古英語 assailen
from Old French asalir asaill-
源自 古法語 asalir asaill-
from Vulgar Latin *assalore
源自 俗拉丁語 *assalore
variant of Latin assilore [to jump on]
拉丁語 assilore的變體 [攻擊]
ad- [onto] * see ad-
ad- [到…上] *參見 ad-
salore [to jump] * see sel-
salore [跳] *參見 sel-

【引伸】
assail.able
adj.（形容詞）
assail.ableness
n.（名詞）
assail.er
n.（名詞）
assail.ment
n.（名詞）